diff --git a/.claude/skills/docs-writer-blog/SKILL.md b/.claude/skills/docs-writer-blog/SKILL.md index ef28225f8..baa21c34d 100644 --- a/.claude/skills/docs-writer-blog/SKILL.md +++ b/.claude/skills/docs-writer-blog/SKILL.md @@ -159,7 +159,7 @@ See [How to Upgrade to React X.Y](/blog/YYYY/MM/DD/react-xy-upgrade-guide) for s ### React {/*react*/} -* Add `useNewHook` for [purpose]. ([#12345](https://github.com/facebook/react/pull/12345) by [@contributor](https://github.com/contributor)) +* Add `useNewHook` for [purpose]. ([#12345](https://github.com/react/react/pull/12345) by [@contributor](https://github.com/contributor)) --- @@ -603,7 +603,7 @@ npm install react@latest react-dom@latest | Type | Pattern | |------|---------| -| GitHub PR | `[#12345](https://github.com/facebook/react/pull/12345)` | +| GitHub PR | `[#12345](https://github.com/react/react/pull/12345)` | | GitHub user | `[@username](https://github.com/username)` | | Twitter/X | `[@username](https://x.com/username)` | | Bluesky | `[Name](https://bsky.app/profile/handle)` | @@ -623,8 +623,8 @@ For more information, see the docs for [`useActionState`](/reference/react/useAc ### Bullet Pattern ```markdown -* Add `useTransition` for concurrent rendering. ([#10426](https://github.com/facebook/react/pull/10426) by [@acdlite](https://github.com/acdlite)) -* Fix `useReducer` observing incorrect props. ([#22445](https://github.com/facebook/react/pull/22445) by [@josephsavona](https://github.com/josephsavona)) +* Add `useTransition` for concurrent rendering. ([#10426](https://github.com/react/react/pull/10426) by [@acdlite](https://github.com/acdlite)) +* Fix `useReducer` observing incorrect props. ([#22445](https://github.com/react/react/pull/22445) by [@josephsavona](https://github.com/josephsavona)) ``` **Structure:** `Verb` + backticked API + description + `([#PR](url) by [@user](url))` diff --git a/.claude/skills/react-expert/SKILL.md b/.claude/skills/react-expert/SKILL.md index 5ebcdee37..c252f6ce0 100644 --- a/.claude/skills/react-expert/SKILL.md +++ b/.claude/skills/react-expert/SKILL.md @@ -32,7 +32,7 @@ This skill produces exhaustive documentation research on any React API or concep 2. **React Source Code** - Warnings, errors, implementation details 3. **Git History** - Commit messages with context 4. **GitHub PRs & Comments** - Design rationale (via `gh` CLI) -5. **GitHub Issues** - Confusion/questions (facebook/react + reactjs/react.dev) +5. **GitHub Issues** - Confusion/questions (react/react + reactjs/react.dev) 6. **React Working Group** - Design discussions for newer APIs 7. **Flow Types** - Source of truth for type signatures 8. **TypeScript Types** - Note discrepancies with Flow @@ -51,7 +51,7 @@ First, ensure the React repo is available locally: if [ -d ".claude/react" ]; then cd .claude/react && git pull origin main else - git clone --depth=100 https://github.com/facebook/react.git .claude/react + git clone --depth=100 https://github.com/react/react.git .claude/react fi ``` @@ -71,8 +71,8 @@ Spawn these agents IN PARALLEL using the Task tool. Each agent receives the skep | test-explorer | Explore | Test files for usage patterns | Search `.claude/react/packages/*/src/__tests__/` for test files mentioning the topic. Extract actual usage examples WITH file paths and line numbers. | | source-explorer | Explore | Warnings/errors in source | Search `.claude/react/packages/*/src/` for console.error, console.warn, and error messages mentioning the topic. Document trigger conditions. | | git-historian | Explore | Commit messages | Run `git log --all --grep="" --oneline -50` in `.claude/react`. Read full commit messages for context. | -| pr-researcher | Explore | PRs introducing/modifying API | Run `gh pr list -R facebook/react --search "" --state all --limit 20`. Read key PR descriptions and comments. | -| issue-hunter | Explore | Issues showing confusion | Search issues in both `facebook/react` and `reactjs/react.dev` repos. Look for common questions and misunderstandings. | +| pr-researcher | Explore | PRs introducing/modifying API | Run `gh pr list -R react/react --search "" --state all --limit 20`. Read key PR descriptions and comments. | +| issue-hunter | Explore | Issues showing confusion | Search issues in both `react/react` and `reactjs/react.dev` repos. Look for common questions and misunderstandings. | | types-inspector | Explore | Flow + TypeScript signatures | Find Flow types in `.claude/react/packages/*/src/*.js` (look for `@flow` annotations). Find TS types in `.claude/react/packages/*/index.d.ts`. Note discrepancies. | ### Step 3: Agent Prompts @@ -164,8 +164,8 @@ CRITICAL: Do NOT rely on your prior knowledge. Only report what you find in PRs. Your task: Find PRs that introduced or modified . -1. Run: gh pr list -R facebook/react --search "" --state all --limit 20 --json number,title,url -2. For promising PRs, read details: gh pr view -R facebook/react +1. Run: gh pr list -R react/react --search "" --state all --limit 20 --json number,title,url +2. For promising PRs, read details: gh pr view -R react/react 3. Look for: - The original RFC/motivation - Design discussions in comments @@ -189,7 +189,7 @@ CRITICAL: Do NOT rely on your prior knowledge. Only report what you find in issu Your task: Find issues that reveal common confusion about . -1. Search facebook/react: gh issue list -R facebook/react --search "" --state all --limit 20 --json number,title,url +1. Search react/react: gh issue list -R react/react --search "" --state all --limit 20 --json number,title,url 2. Search reactjs/react.dev: gh issue list -R reactjs/react.dev --search "" --state all --limit 20 --json number,title,url 3. For each issue, identify: - What the user was confused about @@ -199,7 +199,7 @@ Your task: Find issues that reveal common confusion about . Format your output as: ## Common Confusion ### Issue #: -**Repo:** <facebook/react or reactjs/react.dev> +**Repo:** <react/react or reactjs/react.dev> **Confusion:** <what they misunderstood> **Resolution:** <correct understanding> **Gotcha:** <if applicable> diff --git a/.eslintrc b/.eslintrc index 7bc6ab933..935fa2f23 100644 --- a/.eslintrc +++ b/.eslintrc @@ -9,7 +9,8 @@ "react-hooks/exhaustive-deps": "error", "react/no-unknown-property": ["error", {"ignore": ["meta"]}], "react-compiler/react-compiler": "error", - "local-rules/lint-markdown-code-blocks": "error" + "local-rules/lint-markdown-code-blocks": "error", + "no-trailing-spaces": "error" }, "env": { "node": true, diff --git a/.github/ISSUE_TEMPLATE/config.yml b/.github/ISSUE_TEMPLATE/config.yml index 63e310e0b..de2bfc362 100644 --- a/.github/ISSUE_TEMPLATE/config.yml +++ b/.github/ISSUE_TEMPLATE/config.yml @@ -1,6 +1,6 @@ contact_links: - name: 📃 Bugs in React - url: https://github.com/facebook/react/issues/new/choose + url: https://github.com/react/react/issues/new/choose about: This issue tracker is not for bugs in React. Please file React issues here. - name: 🤔 Questions and Help url: https://reactjs.org/community/support.html diff --git a/.github/workflows/discord_notify.yml b/.github/workflows/discord_notify.yml index 2f5b2a497..97f8d183b 100644 --- a/.github/workflows/discord_notify.yml +++ b/.github/workflows/discord_notify.yml @@ -8,7 +8,7 @@ permissions: {} jobs: check_maintainer: - uses: facebook/react/.github/workflows/shared_check_maintainer.yml@main + uses: react/react/.github/workflows/shared_check_maintainer.yml@main permissions: # Used by check_maintainer contents: read diff --git a/.github/workflows/label_core_team_prs.yml b/.github/workflows/label_core_team_prs.yml index f9b3328ee..4cb6fbc71 100644 --- a/.github/workflows/label_core_team_prs.yml +++ b/.github/workflows/label_core_team_prs.yml @@ -12,7 +12,7 @@ env: jobs: check_maintainer: - uses: facebook/react/.github/workflows/shared_check_maintainer.yml@main + uses: react/react/.github/workflows/shared_check_maintainer.yml@main permissions: # Used by check_maintainer contents: read diff --git a/.gitignore b/.gitignore index 92626a1e6..ed9efe38d 100644 --- a/.gitignore +++ b/.gitignore @@ -46,3 +46,6 @@ public/rss.xml # worktrees .worktrees/ + +# Generated OG images (scripts/generateOgImages.mjs) +public/images/og/ diff --git a/package.json b/package.json index c1fe99575..9e328109a 100644 --- a/package.json +++ b/package.json @@ -7,7 +7,7 @@ "analyze": "ANALYZE=true next build", "dev": "next-remote-watch ./src/content", "prebuild:rsc": "node scripts/buildRscWorker.mjs", - "build": "node scripts/buildRscWorker.mjs && next build && node --experimental-modules ./scripts/downloadFonts.mjs", + "build": "node scripts/buildRscWorker.mjs && next build && node --experimental-modules ./scripts/downloadFonts.mjs && node ./scripts/generateOgImages.mjs", "lint": "next lint && eslint \"src/content/**/*.md\"", "lint:fix": "next lint --fix && eslint \"src/content/**/*.md\" --fix", "format:source": "prettier --config .prettierrc --write \"{plugins,src}/**/*.{js,ts,jsx,tsx,css}\"", @@ -51,6 +51,7 @@ "@babel/plugin-transform-modules-commonjs": "^7.18.6", "@babel/preset-react": "^7.18.6", "@mdx-js/mdx": "^2.1.3", + "@resvg/resvg-js": "^2.6.2", "@types/body-scroll-lock": "^2.6.1", "@types/classnames": "^2.2.10", "@types/debounce": "^1.2.1", @@ -102,6 +103,7 @@ "retext": "^7.0.1", "retext-smartypants": "^4.0.0", "rss": "^1.2.2", + "satori": "^0.26.0", "tailwindcss": "^3.4.1", "typescript": "^5.7.2", "unist-util-visit": "^2.0.3", diff --git a/public/fonts/Optimistic_Display_W_Bd.ttf b/public/fonts/Optimistic_Display_W_Bd.ttf new file mode 100644 index 000000000..9d0cff450 Binary files /dev/null and b/public/fonts/Optimistic_Display_W_Bd.ttf differ diff --git a/public/fonts/Optimistic_Display_W_Md.ttf b/public/fonts/Optimistic_Display_W_Md.ttf new file mode 100644 index 000000000..3fbdb483d Binary files /dev/null and b/public/fonts/Optimistic_Display_W_Md.ttf differ diff --git a/public/images/docs/scientists/1bX5QH6.jpg b/public/images/docs/scientists/1bX5QH6.jpg new file mode 100644 index 000000000..630b91bd2 Binary files /dev/null and b/public/images/docs/scientists/1bX5QH6.jpg differ diff --git a/public/images/docs/scientists/1bX5QH6b.jpg b/public/images/docs/scientists/1bX5QH6b.jpg new file mode 100644 index 000000000..7bd074365 Binary files /dev/null and b/public/images/docs/scientists/1bX5QH6b.jpg differ diff --git a/public/images/docs/scientists/1bX5QH6s.jpg b/public/images/docs/scientists/1bX5QH6s.jpg new file mode 100644 index 000000000..0bc3a6f40 Binary files /dev/null and b/public/images/docs/scientists/1bX5QH6s.jpg differ diff --git a/public/images/docs/scientists/2heNQDcm.jpg b/public/images/docs/scientists/2heNQDcm.jpg new file mode 100644 index 000000000..ecc8ab394 Binary files /dev/null and b/public/images/docs/scientists/2heNQDcm.jpg differ diff --git a/public/images/docs/scientists/3aIiwfm.jpg b/public/images/docs/scientists/3aIiwfm.jpg new file mode 100644 index 000000000..e93d8c802 Binary files /dev/null and b/public/images/docs/scientists/3aIiwfm.jpg differ diff --git a/public/images/docs/scientists/5qwVYb1.jpeg b/public/images/docs/scientists/5qwVYb1.jpeg new file mode 100644 index 000000000..cd8b4e556 Binary files /dev/null and b/public/images/docs/scientists/5qwVYb1.jpeg differ diff --git a/public/images/docs/scientists/6o5Vuyu.jpg b/public/images/docs/scientists/6o5Vuyu.jpg new file mode 100644 index 000000000..941563f8d Binary files /dev/null and b/public/images/docs/scientists/6o5Vuyu.jpg differ diff --git a/public/images/docs/scientists/7vQD0fPb.jpg b/public/images/docs/scientists/7vQD0fPb.jpg new file mode 100644 index 000000000..71baab951 Binary files /dev/null and b/public/images/docs/scientists/7vQD0fPb.jpg differ diff --git a/public/images/docs/scientists/7vQD0fPs.jpg b/public/images/docs/scientists/7vQD0fPs.jpg new file mode 100644 index 000000000..5da6b45f1 Binary files /dev/null and b/public/images/docs/scientists/7vQD0fPs.jpg differ diff --git a/public/images/docs/scientists/9EAYZrtl.jpg b/public/images/docs/scientists/9EAYZrtl.jpg new file mode 100644 index 000000000..7313ffdb2 Binary files /dev/null and b/public/images/docs/scientists/9EAYZrtl.jpg differ diff --git a/public/images/docs/scientists/AlHTAdDm.jpg b/public/images/docs/scientists/AlHTAdDm.jpg new file mode 100644 index 000000000..735c29cd5 Binary files /dev/null and b/public/images/docs/scientists/AlHTAdDm.jpg differ diff --git a/public/images/docs/scientists/DgXHVwul.jpg b/public/images/docs/scientists/DgXHVwul.jpg new file mode 100644 index 000000000..a9dba869c Binary files /dev/null and b/public/images/docs/scientists/DgXHVwul.jpg differ diff --git a/public/images/docs/scientists/FJeJR8M.jpg b/public/images/docs/scientists/FJeJR8M.jpg new file mode 100644 index 000000000..433fc3503 Binary files /dev/null and b/public/images/docs/scientists/FJeJR8M.jpg differ diff --git a/public/images/docs/scientists/HMFmH6m.jpg b/public/images/docs/scientists/HMFmH6m.jpg new file mode 100644 index 000000000..ac0a5f6c3 Binary files /dev/null and b/public/images/docs/scientists/HMFmH6m.jpg differ diff --git a/public/images/docs/scientists/IOjWm71s.jpg b/public/images/docs/scientists/IOjWm71s.jpg new file mode 100644 index 000000000..af912e34b Binary files /dev/null and b/public/images/docs/scientists/IOjWm71s.jpg differ diff --git a/public/images/docs/scientists/JBbMpWY.jpg b/public/images/docs/scientists/JBbMpWY.jpg new file mode 100644 index 000000000..a59002bca Binary files /dev/null and b/public/images/docs/scientists/JBbMpWY.jpg differ diff --git a/public/images/docs/scientists/K9HVAGHl.jpg b/public/images/docs/scientists/K9HVAGHl.jpg new file mode 100644 index 000000000..03894f397 Binary files /dev/null and b/public/images/docs/scientists/K9HVAGHl.jpg differ diff --git a/public/images/docs/scientists/MK3eW3Am.jpg b/public/images/docs/scientists/MK3eW3Am.jpg new file mode 100644 index 000000000..53287dd02 Binary files /dev/null and b/public/images/docs/scientists/MK3eW3Am.jpg differ diff --git a/public/images/docs/scientists/MK3eW3As.jpg b/public/images/docs/scientists/MK3eW3As.jpg new file mode 100644 index 000000000..43244d0c5 Binary files /dev/null and b/public/images/docs/scientists/MK3eW3As.jpg differ diff --git a/public/images/docs/scientists/Mx7dA2Y.jpg b/public/images/docs/scientists/Mx7dA2Y.jpg new file mode 100644 index 000000000..ee41fbbaf Binary files /dev/null and b/public/images/docs/scientists/Mx7dA2Y.jpg differ diff --git a/public/images/docs/scientists/OKS67lhb.jpg b/public/images/docs/scientists/OKS67lhb.jpg new file mode 100644 index 000000000..71d2917a7 Binary files /dev/null and b/public/images/docs/scientists/OKS67lhb.jpg differ diff --git a/public/images/docs/scientists/OKS67lhm.jpg b/public/images/docs/scientists/OKS67lhm.jpg new file mode 100644 index 000000000..9fe8f6307 Binary files /dev/null and b/public/images/docs/scientists/OKS67lhm.jpg differ diff --git a/public/images/docs/scientists/OKS67lhs.jpg b/public/images/docs/scientists/OKS67lhs.jpg new file mode 100644 index 000000000..fb3cf212c Binary files /dev/null and b/public/images/docs/scientists/OKS67lhs.jpg differ diff --git a/public/images/docs/scientists/QIrZWGIs.jpg b/public/images/docs/scientists/QIrZWGIs.jpg new file mode 100644 index 000000000..2bfa8ab82 Binary files /dev/null and b/public/images/docs/scientists/QIrZWGIs.jpg differ diff --git a/public/images/docs/scientists/QwUKKmF.jpg b/public/images/docs/scientists/QwUKKmF.jpg new file mode 100644 index 000000000..05aa061ea Binary files /dev/null and b/public/images/docs/scientists/QwUKKmF.jpg differ diff --git a/public/images/docs/scientists/RCwLEoQm.jpg b/public/images/docs/scientists/RCwLEoQm.jpg new file mode 100644 index 000000000..4d7d0b6df Binary files /dev/null and b/public/images/docs/scientists/RCwLEoQm.jpg differ diff --git a/public/images/docs/scientists/Sd1AgUOm.jpg b/public/images/docs/scientists/Sd1AgUOm.jpg new file mode 100644 index 000000000..b81b83d21 Binary files /dev/null and b/public/images/docs/scientists/Sd1AgUOm.jpg differ diff --git a/public/images/docs/scientists/Y3utgTi.jpg b/public/images/docs/scientists/Y3utgTi.jpg new file mode 100644 index 000000000..8d44e4fed Binary files /dev/null and b/public/images/docs/scientists/Y3utgTi.jpg differ diff --git a/public/images/docs/scientists/YfeOqp2b.jpg b/public/images/docs/scientists/YfeOqp2b.jpg new file mode 100644 index 000000000..44e0c65cb Binary files /dev/null and b/public/images/docs/scientists/YfeOqp2b.jpg differ diff --git a/public/images/docs/scientists/YfeOqp2s.jpg b/public/images/docs/scientists/YfeOqp2s.jpg new file mode 100644 index 000000000..19ef15704 Binary files /dev/null and b/public/images/docs/scientists/YfeOqp2s.jpg differ diff --git a/public/images/docs/scientists/ZF6s192.jpg b/public/images/docs/scientists/ZF6s192.jpg new file mode 100644 index 000000000..f50c7e348 Binary files /dev/null and b/public/images/docs/scientists/ZF6s192.jpg differ diff --git a/public/images/docs/scientists/ZF6s192m.jpg b/public/images/docs/scientists/ZF6s192m.jpg new file mode 100644 index 000000000..056f8d52b Binary files /dev/null and b/public/images/docs/scientists/ZF6s192m.jpg differ diff --git a/public/images/docs/scientists/ZfQOOzfl.jpg b/public/images/docs/scientists/ZfQOOzfl.jpg new file mode 100644 index 000000000..5c9e249bd Binary files /dev/null and b/public/images/docs/scientists/ZfQOOzfl.jpg differ diff --git a/public/images/docs/scientists/aTtVpES.jpg b/public/images/docs/scientists/aTtVpES.jpg new file mode 100644 index 000000000..00e09d093 Binary files /dev/null and b/public/images/docs/scientists/aTtVpES.jpg differ diff --git a/public/images/docs/scientists/aeO3rpIl.jpg b/public/images/docs/scientists/aeO3rpIl.jpg new file mode 100644 index 000000000..3b535b072 Binary files /dev/null and b/public/images/docs/scientists/aeO3rpIl.jpg differ diff --git a/public/images/docs/scientists/bE7W1jis.jpg b/public/images/docs/scientists/bE7W1jis.jpg new file mode 100644 index 000000000..a15a897ea Binary files /dev/null and b/public/images/docs/scientists/bE7W1jis.jpg differ diff --git a/public/images/docs/scientists/dB2LRbj.jpg b/public/images/docs/scientists/dB2LRbj.jpg new file mode 100644 index 000000000..f2ac04825 Binary files /dev/null and b/public/images/docs/scientists/dB2LRbj.jpg differ diff --git a/public/images/docs/scientists/jA8hHMpm.jpg b/public/images/docs/scientists/jA8hHMpm.jpg new file mode 100644 index 000000000..ba2168f85 Binary files /dev/null and b/public/images/docs/scientists/jA8hHMpm.jpg differ diff --git a/public/images/docs/scientists/kxsph5Cl.jpg b/public/images/docs/scientists/kxsph5Cl.jpg new file mode 100644 index 000000000..f33360729 Binary files /dev/null and b/public/images/docs/scientists/kxsph5Cl.jpg differ diff --git a/public/images/docs/scientists/lICfvbD.jpg b/public/images/docs/scientists/lICfvbD.jpg new file mode 100644 index 000000000..67393f31e Binary files /dev/null and b/public/images/docs/scientists/lICfvbD.jpg differ diff --git a/public/images/docs/scientists/lrWQx8ls.jpg b/public/images/docs/scientists/lrWQx8ls.jpg new file mode 100644 index 000000000..bc0708bd0 Binary files /dev/null and b/public/images/docs/scientists/lrWQx8ls.jpg differ diff --git a/public/images/docs/scientists/mynHUSas.jpg b/public/images/docs/scientists/mynHUSas.jpg new file mode 100644 index 000000000..e369df8c5 Binary files /dev/null and b/public/images/docs/scientists/mynHUSas.jpg differ diff --git a/public/images/docs/scientists/okTpbHhm.jpg b/public/images/docs/scientists/okTpbHhm.jpg new file mode 100644 index 000000000..a96c5c03c Binary files /dev/null and b/public/images/docs/scientists/okTpbHhm.jpg differ diff --git a/public/images/docs/scientists/rN7hY6om.jpg b/public/images/docs/scientists/rN7hY6om.jpg new file mode 100644 index 000000000..3c7afe1f9 Binary files /dev/null and b/public/images/docs/scientists/rN7hY6om.jpg differ diff --git a/public/images/docs/scientists/rTqKo46l.jpg b/public/images/docs/scientists/rTqKo46l.jpg new file mode 100644 index 000000000..4a0b3dc3b Binary files /dev/null and b/public/images/docs/scientists/rTqKo46l.jpg differ diff --git a/public/images/docs/scientists/szV5sdGb.jpg b/public/images/docs/scientists/szV5sdGb.jpg new file mode 100644 index 000000000..8d6579402 Binary files /dev/null and b/public/images/docs/scientists/szV5sdGb.jpg differ diff --git a/public/images/docs/scientists/szV5sdGs.jpg b/public/images/docs/scientists/szV5sdGs.jpg new file mode 100644 index 000000000..fc3c34260 Binary files /dev/null and b/public/images/docs/scientists/szV5sdGs.jpg differ diff --git a/public/images/docs/scientists/wIdGuZwm.png b/public/images/docs/scientists/wIdGuZwm.png new file mode 100644 index 000000000..5f482def6 Binary files /dev/null and b/public/images/docs/scientists/wIdGuZwm.png differ diff --git a/public/images/docs/scientists/yXOvdOSs.jpg b/public/images/docs/scientists/yXOvdOSs.jpg new file mode 100644 index 000000000..0a3269510 Binary files /dev/null and b/public/images/docs/scientists/yXOvdOSs.jpg differ diff --git a/public/images/docs/scientists/z08o2TS.jpg b/public/images/docs/scientists/z08o2TS.jpg new file mode 100644 index 000000000..42a0a00ef Binary files /dev/null and b/public/images/docs/scientists/z08o2TS.jpg differ diff --git a/public/images/team/gh-aurorascharff.jpg b/public/images/team/gh-aurorascharff.jpg new file mode 100644 index 000000000..10476e5e8 Binary files /dev/null and b/public/images/team/gh-aurorascharff.jpg differ diff --git a/public/images/team/gh-brentvatne.jpg b/public/images/team/gh-brentvatne.jpg new file mode 100644 index 000000000..c66a5cd6d Binary files /dev/null and b/public/images/team/gh-brentvatne.jpg differ diff --git a/public/images/team/gh-captbaritone.jpg b/public/images/team/gh-captbaritone.jpg new file mode 100644 index 000000000..0100fa16b Binary files /dev/null and b/public/images/team/gh-captbaritone.jpg differ diff --git a/public/images/team/gh-cipolleschi.png b/public/images/team/gh-cipolleschi.png new file mode 100644 index 000000000..a90bec66e Binary files /dev/null and b/public/images/team/gh-cipolleschi.png differ diff --git a/public/images/team/gh-cortinico.jpg b/public/images/team/gh-cortinico.jpg new file mode 100644 index 000000000..e806a103b Binary files /dev/null and b/public/images/team/gh-cortinico.jpg differ diff --git a/public/images/team/gh-fbmal7.jpg b/public/images/team/gh-fbmal7.jpg new file mode 100644 index 000000000..0f79e181d Binary files /dev/null and b/public/images/team/gh-fbmal7.jpg differ diff --git a/public/images/team/gh-fkgozali.jpg b/public/images/team/gh-fkgozali.jpg new file mode 100644 index 000000000..9f87e7efb Binary files /dev/null and b/public/images/team/gh-fkgozali.jpg differ diff --git a/public/images/team/gh-huntie.jpg b/public/images/team/gh-huntie.jpg new file mode 100644 index 000000000..a4de75801 Binary files /dev/null and b/public/images/team/gh-huntie.jpg differ diff --git a/public/images/team/gh-javache.jpg b/public/images/team/gh-javache.jpg new file mode 100644 index 000000000..1f63907ea Binary files /dev/null and b/public/images/team/gh-javache.jpg differ diff --git a/public/images/team/gh-khalef1.jpg b/public/images/team/gh-khalef1.jpg new file mode 100644 index 000000000..94d96f670 Binary files /dev/null and b/public/images/team/gh-khalef1.jpg differ diff --git a/public/images/team/gh-kmagiera.jpg b/public/images/team/gh-kmagiera.jpg new file mode 100644 index 000000000..0e03ecb77 Binary files /dev/null and b/public/images/team/gh-kmagiera.jpg differ diff --git a/public/images/team/gh-motiz88.jpg b/public/images/team/gh-motiz88.jpg new file mode 100644 index 000000000..a67e30b1b Binary files /dev/null and b/public/images/team/gh-motiz88.jpg differ diff --git a/public/images/team/gh-rh389.jpg b/public/images/team/gh-rh389.jpg new file mode 100644 index 000000000..4d5a5e830 Binary files /dev/null and b/public/images/team/gh-rh389.jpg differ diff --git a/public/images/team/gh-rubennorte.jpg b/public/images/team/gh-rubennorte.jpg new file mode 100644 index 000000000..459c267e4 Binary files /dev/null and b/public/images/team/gh-rubennorte.jpg differ diff --git a/public/images/team/gh-samselikoff.jpg b/public/images/team/gh-samselikoff.jpg new file mode 100644 index 000000000..7887765b4 Binary files /dev/null and b/public/images/team/gh-samselikoff.jpg differ diff --git a/public/images/team/gh-simek.png b/public/images/team/gh-simek.png new file mode 100644 index 000000000..23a950103 Binary files /dev/null and b/public/images/team/gh-simek.png differ diff --git a/public/images/team/gh-stmoy.jpg b/public/images/team/gh-stmoy.jpg new file mode 100644 index 000000000..7694a7fb6 Binary files /dev/null and b/public/images/team/gh-stmoy.jpg differ diff --git a/public/images/team/gh-thymikee.jpg b/public/images/team/gh-thymikee.jpg new file mode 100644 index 000000000..d0debc5be Binary files /dev/null and b/public/images/team/gh-thymikee.jpg differ diff --git a/public/images/team/gh-vzaidman.jpg b/public/images/team/gh-vzaidman.jpg new file mode 100644 index 000000000..c76905615 Binary files /dev/null and b/public/images/team/gh-vzaidman.jpg differ diff --git a/public/images/team/jimmy-lai.jpg b/public/images/team/jimmy-lai.jpg new file mode 100644 index 000000000..57b50c800 Binary files /dev/null and b/public/images/team/jimmy-lai.jpg differ diff --git a/public/images/tutorial/codesandbox-devtools.png b/public/images/tutorial/codesandbox-devtools.png deleted file mode 100644 index 1f7ebd500..000000000 Binary files a/public/images/tutorial/codesandbox-devtools.png and /dev/null differ diff --git a/public/images/tutorial/components-tab.png b/public/images/tutorial/components-tab.png new file mode 100644 index 000000000..90ce0770e Binary files /dev/null and b/public/images/tutorial/components-tab.png differ diff --git a/public/images/tutorial/devtools-inspect.gif b/public/images/tutorial/devtools-inspect.gif new file mode 100644 index 000000000..5c623e6a7 Binary files /dev/null and b/public/images/tutorial/devtools-inspect.gif differ diff --git a/public/images/tutorial/devtools-select.gif b/public/images/tutorial/devtools-select.gif deleted file mode 100644 index dd1e1aa61..000000000 Binary files a/public/images/tutorial/devtools-select.gif and /dev/null differ diff --git a/public/images/tutorial/sandbox-new-tab.png b/public/images/tutorial/sandbox-new-tab.png new file mode 100644 index 000000000..093a363fb Binary files /dev/null and b/public/images/tutorial/sandbox-new-tab.png differ diff --git a/scripts/deadLinkChecker.js b/scripts/deadLinkChecker.js index 46a21cdc9..287dde36a 100644 --- a/scripts/deadLinkChecker.js +++ b/scripts/deadLinkChecker.js @@ -311,7 +311,7 @@ async function buildContributorMap() { async function fetchErrorCodes() { try { const response = await fetch( - 'https://raw.githubusercontent.com/facebook/react/main/scripts/error-codes/codes.json' + 'https://raw.githubusercontent.com/react/react/main/scripts/error-codes/codes.json' ); if (!response.ok) { throw new Error(`Failed to fetch error codes: ${response.status}`); diff --git a/scripts/generateOgImages.mjs b/scripts/generateOgImages.mjs new file mode 100644 index 000000000..937727a1c --- /dev/null +++ b/scripts/generateOgImages.mjs @@ -0,0 +1,219 @@ +/** + * Copyright (c) Meta Platforms, Inc. and affiliates. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + */ + +// Generates a static OG image for every content page, so social +// cards show the page title without any runtime image generation. +// Run after `next build` (see the `build` script in package.json). + +import fs from 'fs'; +import path from 'path'; +import satori from 'satori'; +import {Resvg} from '@resvg/resvg-js'; +import matter from 'gray-matter'; + +const ROOT = process.cwd(); +const CONTENT_DIR = path.join(ROOT, 'src', 'content'); +const OUT_DIR = path.join(ROOT, 'public', 'images', 'og'); +const CONCURRENCY = 8; + +const SECTION_LABELS = { + learn: 'Learn React', + reference: 'API Reference', + community: 'Community', + blog: 'Blog', +}; + +const bold = fs.readFileSync( + path.join(ROOT, 'public', 'fonts', 'Optimistic_Display_W_Bd.ttf') +); +const medium = fs.readFileSync( + path.join(ROOT, 'public', 'fonts', 'Optimistic_Display_W_Md.ttf') +); + +function el(type, style, children) { + return {type, props: {style, children}}; +} + +function card(title, pagePath) { + const section = pagePath.split('/')[1] ?? ''; + const label = SECTION_LABELS[section] ?? 'React'; + const logo = { + type: 'svg', + props: { + width: 80, + height: 72, + viewBox: '-10.5 -9.45 21 18.9', + fill: 'none', + children: [ + {type: 'circle', props: {cx: 0, cy: 0, r: 2, fill: '#58c4dc'}}, + { + type: 'g', + props: { + stroke: '#58c4dc', + strokeWidth: 1, + fill: 'none', + children: [ + {type: 'ellipse', props: {rx: 10, ry: 4.5}}, + { + type: 'ellipse', + props: {rx: 10, ry: 4.5, transform: 'rotate(60)'}, + }, + { + type: 'ellipse', + props: {rx: 10, ry: 4.5, transform: 'rotate(120)'}, + }, + ], + }, + }, + ], + }, + }; + return el( + 'div', + { + width: '100%', + height: '100%', + display: 'flex', + flexDirection: 'column', + padding: '72px 80px', + backgroundColor: '#23272f', + backgroundImage: + 'radial-gradient(circle at 25% 30%, #343a46 0%, #23272f 55%)', + }, + [ + el('div', {display: 'flex', alignItems: 'center', gap: '20px'}, [ + logo, + el( + 'div', + { + fontSize: 48, + fontFamily: 'Optimistic Display Bold', + color: '#f6f7f9', + }, + 'React' + ), + ]), + el( + 'div', + { + flexGrow: 1, + display: 'flex', + alignItems: 'center', + fontSize: title.length > 24 ? 72 : 96, + fontFamily: 'Optimistic Display Bold', + color: '#f6f7f9', + lineHeight: 1.1, + wordBreak: 'break-word', + }, + title + ), + el( + 'div', + { + fontSize: 40, + fontFamily: 'Optimistic Display Medium', + color: '#99a1b3', + }, + label + ), + ] + ); +} + +async function renderCard(title, pagePath) { + const svg = await satori(card(title, pagePath), { + width: 1200, + height: 630, + fonts: [ + { + name: 'Optimistic Display Bold', + data: bold, + weight: 700, + style: 'normal', + }, + { + name: 'Optimistic Display Medium', + data: medium, + weight: 500, + style: 'normal', + }, + ], + }); + return new Resvg(svg, {fitTo: {mode: 'width', value: 1200}}).render().asPng(); +} + +function collectSidebarTitles() { + const titles = new Map(); + for (const name of fs.readdirSync(path.join(ROOT, 'src'))) { + if (!/^sidebar.*\.json$/.test(name)) continue; + const walk = (node) => { + if (node.path && node.title) { + titles.set(node.path, node.title); + } + for (const child of node.routes ?? []) walk(child); + }; + walk(JSON.parse(fs.readFileSync(path.join(ROOT, 'src', name), 'utf8'))); + } + return titles; +} + +const sidebarTitles = collectSidebarTitles(); + +function collectPages(dir, out) { + for (const entry of fs.readdirSync(dir, {withFileTypes: true})) { + const full = path.join(dir, entry.name); + if (entry.isDirectory()) { + collectPages(full, out); + } else if (entry.name.endsWith('.md')) { + const rel = path.relative(CONTENT_DIR, full).replace(/\.md$/, ''); + const segments = rel.split(path.sep); + if (segments[segments.length - 1] === 'index') { + segments.pop(); + } + const pagePath = '/' + segments.join('/'); + if (pagePath === '/' || pagePath.startsWith('/errors')) { + continue; + } + const {data} = matter(fs.readFileSync(full, 'utf8')); + const title = data.title ?? sidebarTitles.get(pagePath); + if (title) { + out.push({title: String(title), pagePath}); + } + } + } + return out; +} + +export function ogImageFileName(pagePath) { + return pagePath.replace(/^\//, '').replace(/\//g, '-') + '.png'; +} + +async function main() { + const pages = collectPages(CONTENT_DIR, []); + fs.mkdirSync(OUT_DIR, {recursive: true}); + let done = 0; + const queue = [...pages]; + async function worker() { + for (;;) { + const page = queue.shift(); + if (!page) return; + const png = await renderCard(page.title, page.pagePath); + fs.writeFileSync(path.join(OUT_DIR, ogImageFileName(page.pagePath)), png); + done++; + if (done % 100 === 0) { + console.log(`og-images: ${done}/${pages.length}`); + } + } + } + await Promise.all(Array.from({length: CONCURRENCY}, worker)); + console.log(`og-images: generated ${done} images in public/images/og`); +} + +main().catch((error) => { + console.error(error); + process.exit(1); +}); diff --git a/src/components/ButtonLink.tsx b/src/components/ButtonLink.tsx index bd98d5b38..dff09ed3a 100644 --- a/src/components/ButtonLink.tsx +++ b/src/components/ButtonLink.tsx @@ -33,7 +33,7 @@ function ButtonLink({ className, 'active:scale-[.98] transition-transform inline-flex font-bold items-center outline-none focus:outline-none focus-visible:outline focus-visible:outline-link focus:outline-offset-2 focus-visible:dark:focus:outline-link-dark leading-snug', { - 'bg-link text-white dark:bg-brand-dark dark:text-secondary hover:bg-opacity-80': + 'bg-link text-white dark:bg-brand-dark dark:text-gray-90 hover:bg-opacity-80': type === 'primary', 'text-primary dark:text-primary-dark shadow-secondary-button-stroke dark:shadow-secondary-button-stroke-dark hover:bg-gray-40/5 active:bg-gray-40/10 hover:dark:bg-gray-60/5 active:dark:bg-gray-60/10': type === 'secondary', diff --git a/src/components/Layout/Footer.tsx b/src/components/Layout/Footer.tsx index d11e1469d..50aed2118 100644 --- a/src/components/Layout/Footer.tsx +++ b/src/components/Layout/Footer.tsx @@ -344,7 +344,7 @@ export function Footer() { <FooterLink href="/community" isHeader={true}> Community </FooterLink> - <FooterLink href="https://github.com/facebook/react/blob/main/CODE_OF_CONDUCT.md"> + <FooterLink href="https://github.com/react/react/blob/main/CODE_OF_CONDUCT.md"> Code of Conduct </FooterLink> <FooterLink href="/community/team">Meet the Team</FooterLink> @@ -386,7 +386,7 @@ export function Footer() { </ExternalLink> <ExternalLink aria-label="React on Github" - href="https://github.com/facebook/react" + href="https://github.com/react/react" className={socialLinkClasses}> <IconGitHub /> </ExternalLink> diff --git a/src/components/Layout/Page.tsx b/src/components/Layout/Page.tsx index aa39fe5fc..59cf4386d 100644 --- a/src/components/Layout/Page.tsx +++ b/src/components/Layout/Page.tsx @@ -129,7 +129,18 @@ export function Page({ title={title} titleForTitleTag={meta.titleForTitleTag} isHomePage={isHomePage} - image={`/images/og-` + section + '.png'} + image={ + // OG images are generated per page at build time by + // scripts/generateOgImages.mjs. Pages without a generated + // card (home, errors, 404, 500) use the static section image. + isHomePage || + !title || + cleanedPath.startsWith('/errors') || + cleanedPath === '/404' || + cleanedPath === '/500' + ? `/images/og-${section ?? 'unknown'}.png` + : `/images/og/${cleanedPath.slice(1).replace(/\//g, '-')}.png` + } searchOrder={searchOrder} /> {(isHomePage || isBlogIndex) && ( diff --git a/src/components/Layout/Toc.tsx b/src/components/Layout/Toc.tsx index eac40a5a1..1deb0a6d9 100644 --- a/src/components/Layout/Toc.tsx +++ b/src/components/Layout/Toc.tsx @@ -11,6 +11,7 @@ import cx from 'classnames'; import {useTocHighlight} from './useTocHighlight'; +import {IsInTocContext} from '../MDX/TocContext'; import type {Toc} from '../MDX/TocContext'; export function Toc({headings}: {headings: Toc}) { @@ -32,37 +33,39 @@ export function Toc({headings}: {headings: Toc}) { overscrollBehavior: 'contain', }}> <ul className="space-y-2 pb-16"> - {headings.length > 0 && - headings.map((h, i) => { - if (!h.url && process.env.NODE_ENV === 'development') { - console.error('Heading does not have URL'); - } - return ( - <li - key={`heading-${h.url}-${i}`} - className={cx( - 'text-sm px-2 rounded-s-xl', - selectedIndex === i - ? 'bg-highlight dark:bg-highlight-dark' - : null, - { - 'ps-4': h?.depth === 3, - hidden: h.depth && h.depth > 3, - } - )}> - <a + <IsInTocContext.Provider value={true}> + {headings.length > 0 && + headings.map((h, i) => { + if (!h.url && process.env.NODE_ENV === 'development') { + console.error('Heading does not have URL'); + } + return ( + <li + key={`heading-${h.url}-${i}`} className={cx( + 'text-sm px-2 rounded-s-xl', selectedIndex === i - ? 'text-link dark:text-link-dark font-bold' - : 'text-secondary dark:text-secondary-dark', - 'block hover:text-link dark:hover:text-link-dark leading-normal py-2' - )} - href={h.url}> - {h.text} - </a> - </li> - ); - })} + ? 'bg-highlight dark:bg-highlight-dark' + : null, + { + 'ps-4': h?.depth === 3, + hidden: h.depth && h.depth > 3, + } + )}> + <a + className={cx( + selectedIndex === i + ? 'text-link dark:text-link-dark font-bold' + : 'text-secondary dark:text-secondary-dark', + 'block hover:text-link dark:hover:text-link-dark leading-normal py-2' + )} + href={h.url}> + {h.text} + </a> + </li> + ); + })} + </IsInTocContext.Provider> </ul> </div> </nav> diff --git a/src/components/Layout/TopNav/TopNav.tsx b/src/components/Layout/TopNav/TopNav.tsx index f2bbc8384..f9c2901e1 100644 --- a/src/components/Layout/TopNav/TopNav.tsx +++ b/src/components/Layout/TopNav/TopNav.tsx @@ -386,7 +386,7 @@ export default function TopNav({ </div> <div className="flex"> <Link - href="https://github.com/facebook/react/releases" + href="https://github.com/react/react/releases" target="_blank" rel="noreferrer noopener" aria-label="Open on GitHub" diff --git a/src/components/MDX/MDXComponents.tsx b/src/components/MDX/MDXComponents.tsx index 89f3bf5ff..d6df071c4 100644 --- a/src/components/MDX/MDXComponents.tsx +++ b/src/components/MDX/MDXComponents.tsx @@ -36,7 +36,7 @@ import YouWillLearnCard from './YouWillLearnCard'; import {Challenges, Hint, Solution} from './Challenges'; import {IconNavArrow} from '../Icon/IconNavArrow'; import ButtonLink from 'components/ButtonLink'; -import {TocContext} from './TocContext'; +import {TocContext, IsInTocContext} from './TocContext'; import type {Toc, TocItem} from './TocContext'; import {TeamMember} from './TeamMember'; import {LanguagesContext} from './LanguagesContext'; @@ -122,33 +122,57 @@ const RSC = ({children}: {children: React.ReactNode}) => ( <ExpandableCallout type="rsc">{children}</ExpandableCallout> ); -const CanaryBadge = ({title}: {title: string}) => ( - <span - title={title} - className={ - 'text-base font-display px-1 py-0.5 font-bold bg-gray-10 dark:bg-gray-60 text-gray-60 dark:text-gray-10 rounded' - }> - <IconCanary - size="s" - className={'inline me-1 mb-0.5 text-sm text-gray-60 dark:text-gray-10'} - /> - Canary only - </span> -); +const CanaryBadge = ({title}: {title: string}) => { + const isInToc = useContext(IsInTocContext); + if (isInToc) { + return ( + <IconCanary + size="s" + title={title} + className="inline me-1 mb-0.5 text-gray-60 dark:text-gray-10" + /> + ); + } + return ( + <span + title={title} + className={ + 'text-base font-display px-1 py-0.5 font-bold bg-gray-10 dark:bg-gray-60 text-gray-60 dark:text-gray-10 rounded' + }> + <IconCanary + size="s" + className={'inline me-1 mb-0.5 text-sm text-gray-60 dark:text-gray-10'} + /> + Canary only + </span> + ); +}; -const ExperimentalBadge = ({title}: {title: string}) => ( - <span - title={title} - className={ - 'text-base font-display px-1 py-0.5 font-bold bg-gray-10 dark:bg-gray-60 text-gray-60 dark:text-gray-10 rounded' - }> - <IconExperimental - size="s" - className={'inline me-1 mb-0.5 text-sm text-gray-60 dark:text-gray-10'} - /> - Experimental only - </span> -); +const ExperimentalBadge = ({title}: {title: string}) => { + const isInToc = useContext(IsInTocContext); + if (isInToc) { + return ( + <IconExperimental + size="s" + title={title} + className="inline me-1 mb-0.5 text-gray-60 dark:text-gray-10" + /> + ); + } + return ( + <span + title={title} + className={ + 'text-base font-display px-1 py-0.5 font-bold bg-gray-10 dark:bg-gray-60 text-gray-60 dark:text-gray-10 rounded' + }> + <IconExperimental + size="s" + className={'inline me-1 mb-0.5 text-sm text-gray-60 dark:text-gray-10'} + /> + Experimental only + </span> + ); +}; const NextMajorBadge = ({title}: {title: string}) => ( <span @@ -422,7 +446,11 @@ function InlineToc() { if (root.children.length < 2) { return null; } - return <InlineTocItem items={root.children} />; + return ( + <IsInTocContext.Provider value={true}> + <InlineTocItem items={root.children} /> + </IsInTocContext.Provider> + ); } function InlineTocItem({items}: {items: Array<NestedTocNode>}) { diff --git a/src/components/MDX/Sandpack/DownloadButton.tsx b/src/components/MDX/Sandpack/DownloadButton.tsx index 7e0d68963..1139be87d 100644 --- a/src/components/MDX/Sandpack/DownloadButton.tsx +++ b/src/components/MDX/Sandpack/DownloadButton.tsx @@ -19,7 +19,7 @@ let supportsImportMap = false; function subscribe(cb: () => void) { // This shouldn't actually need to update, but this works around - // https://github.com/facebook/react/issues/26095 + // https://github.com/react/react/issues/26095 let timeout = setTimeout(() => { supportsImportMap = (HTMLScriptElement as any).supports && diff --git a/src/components/MDX/TeamMember.tsx b/src/components/MDX/TeamMember.tsx index 2d0c65537..2716fa2d1 100644 --- a/src/components/MDX/TeamMember.tsx +++ b/src/components/MDX/TeamMember.tsx @@ -23,13 +23,49 @@ interface TeamMemberProps { name: string; title: string; permalink: string; - children: React.ReactNode; + children?: React.ReactNode; photo: string; twitter?: string; threads?: string; bsky?: string; github?: string; personal?: string; + // Comma-separated list of working groups. Suffix a group with `*` to mark + // that the member represents it on the Leadership Council, e.g. "Fiber*, DOM". + group?: string; +} + +function GroupBadges({group}: {group: string}) { + const groups = group + .split(',') + .map((g) => g.trim()) + .filter(Boolean); + if (groups.length === 0) { + return null; + } + return ( + <div className="flex flex-row flex-wrap gap-2 my-3"> + {groups.map((g) => { + const isLead = g.endsWith('*'); + const label = isLead ? g.slice(0, -1).trim() : g; + return ( + <span + key={g} + className="inline-flex items-center rounded-full bg-blue-10 dark:bg-gray-80 text-link dark:text-link-dark px-3 py-1 text-sm font-medium whitespace-nowrap"> + {label} + {isLead && ( + <span + className="ps-1 text-yellow-50" + aria-label="Leadership Council" + title="Leadership Council"> + ★ + </span> + )} + </span> + ); + })} + </div> + ); } // TODO: good alt text for images/links @@ -44,12 +80,11 @@ export function TeamMember({ threads, bsky, personal, + group, }: TeamMemberProps) { - if (name == null || title == null || permalink == null || children == null) { + if (name == null || title == null || permalink == null) { const identifier = name ?? title ?? permalink ?? 'unknown'; - throw new Error( - `Expected name, title, permalink, and children for ${identifier}` - ); + throw new Error(`Expected name, title, and permalink for ${identifier}`); } return ( <div className="pb-6 sm:pb-10"> @@ -69,6 +104,7 @@ export function TeamMember({ {name} </H3> {title && <div>{title}</div>} + {group && <GroupBadges group={group} />} {children} <div className="sm:flex sm:flex-row flex-wrap text-secondary dark:text-secondary-dark"> {twitter && ( diff --git a/src/components/MDX/TocContext.tsx b/src/components/MDX/TocContext.tsx index 924e6e09e..804895369 100644 --- a/src/components/MDX/TocContext.tsx +++ b/src/components/MDX/TocContext.tsx @@ -20,3 +20,6 @@ export type TocItem = { export type Toc = Array<TocItem>; export const TocContext = createContext<Toc>([]); + +// Lets badge components render compactly when inside the table of contents. +export const IsInTocContext = createContext(false); diff --git a/src/content/blog/2021/06/08/the-plan-for-react-18.md b/src/content/blog/2021/06/08/the-plan-for-react-18.md index bed24396d..1004523b7 100644 --- a/src/content/blog/2021/06/08/the-plan-for-react-18.md +++ b/src/content/blog/2021/06/08/the-plan-for-react-18.md @@ -51,7 +51,7 @@ Everyone can read the discussions in the [React 18 Working Group repo](https://g Because we expect an initial surge of interest in the Working Group, only invited members will be allowed to create or comment on threads. However, the threads are fully visible to the public, so everyone has access to the same information. We believe this is a good compromise between creating a productive environment for working group members, while maintaining transparency with the wider community. -As always, you can submit bug reports, questions, and general feedback to our [issue tracker](https://github.com/facebook/react/issues). +As always, you can submit bug reports, questions, and general feedback to our [issue tracker](https://github.com/react/react/issues). ## How to try React 18 Alpha today {/*how-to-try-react-18-alpha-today*/} diff --git a/src/content/blog/2022/03/08/react-18-upgrade-guide.md b/src/content/blog/2022/03/08/react-18-upgrade-guide.md index 9d34dfaaa..50babfb13 100644 --- a/src/content/blog/2022/03/08/react-18-upgrade-guide.md +++ b/src/content/blog/2022/03/08/react-18-upgrade-guide.md @@ -13,7 +13,7 @@ March 08, 2022 by [Rick Hanlon](https://twitter.com/rickhanlonii) As we shared in the [release post](/blog/2022/03/29/react-v18), React 18 introduces features powered by our new concurrent renderer, with a gradual adoption strategy for existing applications. In this post, we will guide you through the steps for upgrading to React 18. -Please [report any issues](https://github.com/facebook/react/issues/new/choose) you encounter while upgrading to React 18. +Please [report any issues](https://github.com/react/react/issues/new/choose) you encounter while upgrading to React 18. </Intro> @@ -317,8 +317,8 @@ If you need to support Internet Explorer we recommend you stay with React 17. * **Components can now render `undefined`:** React no longer warns if you return `undefined` from a component. This makes the allowed component return values consistent with values that are allowed in the middle of a component tree. We suggest to use a linter to prevent mistakes like forgetting a `return` statement before JSX. * **In tests, `act` warnings are now opt-in:** If you're running end-to-end tests, the `act` warnings are unnecessary. We've introduced an [opt-in](https://github.com/reactwg/react-18/discussions/102) mechanism so you can enable them only for unit tests where they are useful and beneficial. -* **No warning about `setState` on unmounted components:** Previously, React warned about memory leaks when you call `setState` on an unmounted component. This warning was added for subscriptions, but people primarily run into it in scenarios where setting state is fine, and workarounds make the code worse. We've [removed](https://github.com/facebook/react/pull/22114) this warning. -* **No suppression of console logs:** When you use Strict Mode, React renders each component twice to help you find unexpected side effects. In React 17, we've suppressed console logs for one of the two renders to make the logs easier to read. In response to [community feedback](https://github.com/facebook/react/issues/21783) about this being confusing, we've removed the suppression. Instead, if you have React DevTools installed, the second log's renders will be displayed in grey, and there will be an option (off by default) to suppress them completely. +* **No warning about `setState` on unmounted components:** Previously, React warned about memory leaks when you call `setState` on an unmounted component. This warning was added for subscriptions, but people primarily run into it in scenarios where setting state is fine, and workarounds make the code worse. We've [removed](https://github.com/react/react/pull/22114) this warning. +* **No suppression of console logs:** When you use Strict Mode, React renders each component twice to help you find unexpected side effects. In React 17, we've suppressed console logs for one of the two renders to make the logs easier to read. In response to [community feedback](https://github.com/react/react/issues/21783) about this being confusing, we've removed the suppression. Instead, if you have React DevTools installed, the second log's renders will be displayed in grey, and there will be an option (off by default) to suppress them completely. * **Improved memory usage:** React now cleans up more internal fields on unmount, making the impact from unfixed memory leaks that may exist in your application code less severe. ### React DOM Server {/*react-dom-server*/} @@ -328,4 +328,4 @@ If you need to support Internet Explorer we recommend you stay with React 17. ## Changelog {/*changelog*/} -You can view the [full changelog here](https://github.com/facebook/react/blob/main/CHANGELOG.md). +You can view the [full changelog here](https://github.com/react/react/blob/main/CHANGELOG.md). diff --git a/src/content/blog/2022/03/29/react-v18.md b/src/content/blog/2022/03/29/react-v18.md index d21eeb1f5..b68ef4e8d 100644 --- a/src/content/blog/2022/03/29/react-v18.md +++ b/src/content/blog/2022/03/29/react-v18.md @@ -270,75 +270,75 @@ See [How to Upgrade to React 18](/blog/2022/03/08/react-18-upgrade-guide) for st ### React {/*react*/} -* Add `useTransition` and `useDeferredValue` to separate urgent updates from transitions. ([#10426](https://github.com/facebook/react/pull/10426), [#10715](https://github.com/facebook/react/pull/10715), [#15593](https://github.com/facebook/react/pull/15593), [#15272](https://github.com/facebook/react/pull/15272), [#15578](https://github.com/facebook/react/pull/15578), [#15769](https://github.com/facebook/react/pull/15769), [#17058](https://github.com/facebook/react/pull/17058), [#18796](https://github.com/facebook/react/pull/18796), [#19121](https://github.com/facebook/react/pull/19121), [#19703](https://github.com/facebook/react/pull/19703), [#19719](https://github.com/facebook/react/pull/19719), [#19724](https://github.com/facebook/react/pull/19724), [#20672](https://github.com/facebook/react/pull/20672), [#20976](https://github.com/facebook/react/pull/20976) by [@acdlite](https://github.com/acdlite), [@lunaruan](https://github.com/lunaruan), [@rickhanlonii](https://github.com/rickhanlonii), and [@sebmarkbage](https://github.com/sebmarkbage)) -* Add `useId` for generating unique IDs. ([#17322](https://github.com/facebook/react/pull/17322), [#18576](https://github.com/facebook/react/pull/18576), [#22644](https://github.com/facebook/react/pull/22644), [#22672](https://github.com/facebook/react/pull/22672), [#21260](https://github.com/facebook/react/pull/21260) by [@acdlite](https://github.com/acdlite), [@lunaruan](https://github.com/lunaruan), and [@sebmarkbage](https://github.com/sebmarkbage)) -* Add `useSyncExternalStore` to help external store libraries integrate with React. ([#15022](https://github.com/facebook/react/pull/15022), [#18000](https://github.com/facebook/react/pull/18000), [#18771](https://github.com/facebook/react/pull/18771), [#22211](https://github.com/facebook/react/pull/22211), [#22292](https://github.com/facebook/react/pull/22292), [#22239](https://github.com/facebook/react/pull/22239), [#22347](https://github.com/facebook/react/pull/22347), [#23150](https://github.com/facebook/react/pull/23150) by [@acdlite](https://github.com/acdlite), [@bvaughn](https://github.com/bvaughn), and [@drarmstr](https://github.com/drarmstr)) -* Add `startTransition` as a version of `useTransition` without pending feedback. ([#19696](https://github.com/facebook/react/pull/19696) by [@rickhanlonii](https://github.com/rickhanlonii)) -* Add `useInsertionEffect` for CSS-in-JS libraries. ([#21913](https://github.com/facebook/react/pull/21913) by [@rickhanlonii](https://github.com/rickhanlonii)) -* Make Suspense remount layout effects when content reappears. ([#19322](https://github.com/facebook/react/pull/19322), [#19374](https://github.com/facebook/react/pull/19374), [#19523](https://github.com/facebook/react/pull/19523), [#20625](https://github.com/facebook/react/pull/20625), [#21079](https://github.com/facebook/react/pull/21079) by [@acdlite](https://github.com/acdlite), [@bvaughn](https://github.com/bvaughn), and [@lunaruan](https://github.com/lunaruan)) -* Make `<StrictMode>` re-run effects to check for restorable state. ([#19523](https://github.com/facebook/react/pull/19523) , [#21418](https://github.com/facebook/react/pull/21418) by [@bvaughn](https://github.com/bvaughn) and [@lunaruan](https://github.com/lunaruan)) -* Assume Symbols are always available. ([#23348](https://github.com/facebook/react/pull/23348) by [@sebmarkbage](https://github.com/sebmarkbage)) -* Remove `object-assign` polyfill. ([#23351](https://github.com/facebook/react/pull/23351) by [@sebmarkbage](https://github.com/sebmarkbage)) -* Remove unsupported `unstable_changedBits` API. ([#20953](https://github.com/facebook/react/pull/20953) by [@acdlite](https://github.com/acdlite)) -* Allow components to render undefined. ([#21869](https://github.com/facebook/react/pull/21869) by [@rickhanlonii](https://github.com/rickhanlonii)) -* Flush `useEffect` resulting from discrete events like clicks synchronously. ([#21150](https://github.com/facebook/react/pull/21150) by [@acdlite](https://github.com/acdlite)) -* Suspense `fallback={undefined}` now behaves the same as `null` and isn't ignored. ([#21854](https://github.com/facebook/react/pull/21854) by [@rickhanlonii](https://github.com/rickhanlonii)) -* Consider all `lazy()` resolving to the same component equivalent. ([#20357](https://github.com/facebook/react/pull/20357) by [@sebmarkbage](https://github.com/sebmarkbage)) -* Don't patch console during first render. ([#22308](https://github.com/facebook/react/pull/22308) by [@lunaruan](https://github.com/lunaruan)) -* Improve memory usage. ([#21039](https://github.com/facebook/react/pull/21039) by [@bgirard](https://github.com/bgirard)) -* Improve messages if string coercion throws (Temporal.*, Symbol, etc.) ([#22064](https://github.com/facebook/react/pull/22064) by [@justingrant](https://github.com/justingrant)) -* Use `setImmediate` when available over `MessageChannel`. ([#20834](https://github.com/facebook/react/pull/20834) by [@gaearon](https://github.com/gaearon)) -* Fix context failing to propagate inside suspended trees. ([#23095](https://github.com/facebook/react/pull/23095) by [@gaearon](https://github.com/gaearon)) -* Fix `useReducer` observing incorrect props by removing the eager bailout mechanism. ([#22445](https://github.com/facebook/react/pull/22445) by [@josephsavona](https://github.com/josephsavona)) -* Fix `setState` being ignored in Safari when appending iframes. ([#23111](https://github.com/facebook/react/pull/23111) by [@gaearon](https://github.com/gaearon)) -* Fix a crash when rendering `ZonedDateTime` in the tree. ([#20617](https://github.com/facebook/react/pull/20617) by [@dimaqq](https://github.com/dimaqq)) -* Fix a crash when document is set to `null` in tests. ([#22695](https://github.com/facebook/react/pull/22695) by [@SimenB](https://github.com/SimenB)) -* Fix `onLoad` not triggering when concurrent features are on. ([#23316](https://github.com/facebook/react/pull/23316) by [@gnoff](https://github.com/gnoff)) -* Fix a warning when a selector returns `NaN`. ([#23333](https://github.com/facebook/react/pull/23333) by [@hachibeeDI](https://github.com/hachibeeDI)) -* Fix a crash when document is set to `null` in tests. ([#22695](https://github.com/facebook/react/pull/22695) by [@SimenB](https://github.com/SimenB)) -* Fix the generated license header. ([#23004](https://github.com/facebook/react/pull/23004) by [@vitaliemiron](https://github.com/vitaliemiron)) -* Add `package.json` as one of the entry points. ([#22954](https://github.com/facebook/react/pull/22954) by [@Jack](https://github.com/Jack-Works)) -* Allow suspending outside a Suspense boundary. ([#23267](https://github.com/facebook/react/pull/23267) by [@acdlite](https://github.com/acdlite)) -* Log a recoverable error whenever hydration fails. ([#23319](https://github.com/facebook/react/pull/23319) by [@acdlite](https://github.com/acdlite)) +* Add `useTransition` and `useDeferredValue` to separate urgent updates from transitions. ([#10426](https://github.com/react/react/pull/10426), [#10715](https://github.com/react/react/pull/10715), [#15593](https://github.com/react/react/pull/15593), [#15272](https://github.com/react/react/pull/15272), [#15578](https://github.com/react/react/pull/15578), [#15769](https://github.com/react/react/pull/15769), [#17058](https://github.com/react/react/pull/17058), [#18796](https://github.com/react/react/pull/18796), [#19121](https://github.com/react/react/pull/19121), [#19703](https://github.com/react/react/pull/19703), [#19719](https://github.com/react/react/pull/19719), [#19724](https://github.com/react/react/pull/19724), [#20672](https://github.com/react/react/pull/20672), [#20976](https://github.com/react/react/pull/20976) by [@acdlite](https://github.com/acdlite), [@lunaruan](https://github.com/lunaruan), [@rickhanlonii](https://github.com/rickhanlonii), and [@sebmarkbage](https://github.com/sebmarkbage)) +* Add `useId` for generating unique IDs. ([#17322](https://github.com/react/react/pull/17322), [#18576](https://github.com/react/react/pull/18576), [#22644](https://github.com/react/react/pull/22644), [#22672](https://github.com/react/react/pull/22672), [#21260](https://github.com/react/react/pull/21260) by [@acdlite](https://github.com/acdlite), [@lunaruan](https://github.com/lunaruan), and [@sebmarkbage](https://github.com/sebmarkbage)) +* Add `useSyncExternalStore` to help external store libraries integrate with React. ([#15022](https://github.com/react/react/pull/15022), [#18000](https://github.com/react/react/pull/18000), [#18771](https://github.com/react/react/pull/18771), [#22211](https://github.com/react/react/pull/22211), [#22292](https://github.com/react/react/pull/22292), [#22239](https://github.com/react/react/pull/22239), [#22347](https://github.com/react/react/pull/22347), [#23150](https://github.com/react/react/pull/23150) by [@acdlite](https://github.com/acdlite), [@bvaughn](https://github.com/bvaughn), and [@drarmstr](https://github.com/drarmstr)) +* Add `startTransition` as a version of `useTransition` without pending feedback. ([#19696](https://github.com/react/react/pull/19696) by [@rickhanlonii](https://github.com/rickhanlonii)) +* Add `useInsertionEffect` for CSS-in-JS libraries. ([#21913](https://github.com/react/react/pull/21913) by [@rickhanlonii](https://github.com/rickhanlonii)) +* Make Suspense remount layout effects when content reappears. ([#19322](https://github.com/react/react/pull/19322), [#19374](https://github.com/react/react/pull/19374), [#19523](https://github.com/react/react/pull/19523), [#20625](https://github.com/react/react/pull/20625), [#21079](https://github.com/react/react/pull/21079) by [@acdlite](https://github.com/acdlite), [@bvaughn](https://github.com/bvaughn), and [@lunaruan](https://github.com/lunaruan)) +* Make `<StrictMode>` re-run effects to check for restorable state. ([#19523](https://github.com/react/react/pull/19523) , [#21418](https://github.com/react/react/pull/21418) by [@bvaughn](https://github.com/bvaughn) and [@lunaruan](https://github.com/lunaruan)) +* Assume Symbols are always available. ([#23348](https://github.com/react/react/pull/23348) by [@sebmarkbage](https://github.com/sebmarkbage)) +* Remove `object-assign` polyfill. ([#23351](https://github.com/react/react/pull/23351) by [@sebmarkbage](https://github.com/sebmarkbage)) +* Remove unsupported `unstable_changedBits` API. ([#20953](https://github.com/react/react/pull/20953) by [@acdlite](https://github.com/acdlite)) +* Allow components to render undefined. ([#21869](https://github.com/react/react/pull/21869) by [@rickhanlonii](https://github.com/rickhanlonii)) +* Flush `useEffect` resulting from discrete events like clicks synchronously. ([#21150](https://github.com/react/react/pull/21150) by [@acdlite](https://github.com/acdlite)) +* Suspense `fallback={undefined}` now behaves the same as `null` and isn't ignored. ([#21854](https://github.com/react/react/pull/21854) by [@rickhanlonii](https://github.com/rickhanlonii)) +* Consider all `lazy()` resolving to the same component equivalent. ([#20357](https://github.com/react/react/pull/20357) by [@sebmarkbage](https://github.com/sebmarkbage)) +* Don't patch console during first render. ([#22308](https://github.com/react/react/pull/22308) by [@lunaruan](https://github.com/lunaruan)) +* Improve memory usage. ([#21039](https://github.com/react/react/pull/21039) by [@bgirard](https://github.com/bgirard)) +* Improve messages if string coercion throws (Temporal.*, Symbol, etc.) ([#22064](https://github.com/react/react/pull/22064) by [@justingrant](https://github.com/justingrant)) +* Use `setImmediate` when available over `MessageChannel`. ([#20834](https://github.com/react/react/pull/20834) by [@gaearon](https://github.com/gaearon)) +* Fix context failing to propagate inside suspended trees. ([#23095](https://github.com/react/react/pull/23095) by [@gaearon](https://github.com/gaearon)) +* Fix `useReducer` observing incorrect props by removing the eager bailout mechanism. ([#22445](https://github.com/react/react/pull/22445) by [@josephsavona](https://github.com/josephsavona)) +* Fix `setState` being ignored in Safari when appending iframes. ([#23111](https://github.com/react/react/pull/23111) by [@gaearon](https://github.com/gaearon)) +* Fix a crash when rendering `ZonedDateTime` in the tree. ([#20617](https://github.com/react/react/pull/20617) by [@dimaqq](https://github.com/dimaqq)) +* Fix a crash when document is set to `null` in tests. ([#22695](https://github.com/react/react/pull/22695) by [@SimenB](https://github.com/SimenB)) +* Fix `onLoad` not triggering when concurrent features are on. ([#23316](https://github.com/react/react/pull/23316) by [@gnoff](https://github.com/gnoff)) +* Fix a warning when a selector returns `NaN`. ([#23333](https://github.com/react/react/pull/23333) by [@hachibeeDI](https://github.com/hachibeeDI)) +* Fix a crash when document is set to `null` in tests. ([#22695](https://github.com/react/react/pull/22695) by [@SimenB](https://github.com/SimenB)) +* Fix the generated license header. ([#23004](https://github.com/react/react/pull/23004) by [@vitaliemiron](https://github.com/vitaliemiron)) +* Add `package.json` as one of the entry points. ([#22954](https://github.com/react/react/pull/22954) by [@Jack](https://github.com/Jack-Works)) +* Allow suspending outside a Suspense boundary. ([#23267](https://github.com/react/react/pull/23267) by [@acdlite](https://github.com/acdlite)) +* Log a recoverable error whenever hydration fails. ([#23319](https://github.com/react/react/pull/23319) by [@acdlite](https://github.com/acdlite)) ### React DOM {/*react-dom*/} -* Add `createRoot` and `hydrateRoot`. ([#10239](https://github.com/facebook/react/pull/10239), [#11225](https://github.com/facebook/react/pull/11225), [#12117](https://github.com/facebook/react/pull/12117), [#13732](https://github.com/facebook/react/pull/13732), [#15502](https://github.com/facebook/react/pull/15502), [#15532](https://github.com/facebook/react/pull/15532), [#17035](https://github.com/facebook/react/pull/17035), [#17165](https://github.com/facebook/react/pull/17165), [#20669](https://github.com/facebook/react/pull/20669), [#20748](https://github.com/facebook/react/pull/20748), [#20888](https://github.com/facebook/react/pull/20888), [#21072](https://github.com/facebook/react/pull/21072), [#21417](https://github.com/facebook/react/pull/21417), [#21652](https://github.com/facebook/react/pull/21652), [#21687](https://github.com/facebook/react/pull/21687), [#23207](https://github.com/facebook/react/pull/23207), [#23385](https://github.com/facebook/react/pull/23385) by [@acdlite](https://github.com/acdlite), [@bvaughn](https://github.com/bvaughn), [@gaearon](https://github.com/gaearon), [@lunaruan](https://github.com/lunaruan), [@rickhanlonii](https://github.com/rickhanlonii), [@trueadm](https://github.com/trueadm), and [@sebmarkbage](https://github.com/sebmarkbage)) -* Add selective hydration. ([#14717](https://github.com/facebook/react/pull/14717), [#14884](https://github.com/facebook/react/pull/14884), [#16725](https://github.com/facebook/react/pull/16725), [#16880](https://github.com/facebook/react/pull/16880), [#17004](https://github.com/facebook/react/pull/17004), [#22416](https://github.com/facebook/react/pull/22416), [#22629](https://github.com/facebook/react/pull/22629), [#22448](https://github.com/facebook/react/pull/22448), [#22856](https://github.com/facebook/react/pull/22856), [#23176](https://github.com/facebook/react/pull/23176) by [@acdlite](https://github.com/acdlite), [@gaearon](https://github.com/gaearon), [@salazarm](https://github.com/salazarm), and [@sebmarkbage](https://github.com/sebmarkbage)) -* Add `aria-description` to the list of known ARIA attributes. ([#22142](https://github.com/facebook/react/pull/22142) by [@mahyareb](https://github.com/mahyareb)) -* Add `onResize` event to video elements. ([#21973](https://github.com/facebook/react/pull/21973) by [@rileyjshaw](https://github.com/rileyjshaw)) -* Add `imageSizes` and `imageSrcSet` to known props. ([#22550](https://github.com/facebook/react/pull/22550) by [@eps1lon](https://github.com/eps1lon)) -* Allow non-string `<option>` children if `value` is provided. ([#21431](https://github.com/facebook/react/pull/21431) by [@sebmarkbage](https://github.com/sebmarkbage)) -* Fix `aspectRatio` style not being applied. ([#21100](https://github.com/facebook/react/pull/21100) by [@gaearon](https://github.com/gaearon)) -* Warn if `renderSubtreeIntoContainer` is called. ([#23355](https://github.com/facebook/react/pull/23355) by [@acdlite](https://github.com/acdlite)) +* Add `createRoot` and `hydrateRoot`. ([#10239](https://github.com/react/react/pull/10239), [#11225](https://github.com/react/react/pull/11225), [#12117](https://github.com/react/react/pull/12117), [#13732](https://github.com/react/react/pull/13732), [#15502](https://github.com/react/react/pull/15502), [#15532](https://github.com/react/react/pull/15532), [#17035](https://github.com/react/react/pull/17035), [#17165](https://github.com/react/react/pull/17165), [#20669](https://github.com/react/react/pull/20669), [#20748](https://github.com/react/react/pull/20748), [#20888](https://github.com/react/react/pull/20888), [#21072](https://github.com/react/react/pull/21072), [#21417](https://github.com/react/react/pull/21417), [#21652](https://github.com/react/react/pull/21652), [#21687](https://github.com/react/react/pull/21687), [#23207](https://github.com/react/react/pull/23207), [#23385](https://github.com/react/react/pull/23385) by [@acdlite](https://github.com/acdlite), [@bvaughn](https://github.com/bvaughn), [@gaearon](https://github.com/gaearon), [@lunaruan](https://github.com/lunaruan), [@rickhanlonii](https://github.com/rickhanlonii), [@trueadm](https://github.com/trueadm), and [@sebmarkbage](https://github.com/sebmarkbage)) +* Add selective hydration. ([#14717](https://github.com/react/react/pull/14717), [#14884](https://github.com/react/react/pull/14884), [#16725](https://github.com/react/react/pull/16725), [#16880](https://github.com/react/react/pull/16880), [#17004](https://github.com/react/react/pull/17004), [#22416](https://github.com/react/react/pull/22416), [#22629](https://github.com/react/react/pull/22629), [#22448](https://github.com/react/react/pull/22448), [#22856](https://github.com/react/react/pull/22856), [#23176](https://github.com/react/react/pull/23176) by [@acdlite](https://github.com/acdlite), [@gaearon](https://github.com/gaearon), [@salazarm](https://github.com/salazarm), and [@sebmarkbage](https://github.com/sebmarkbage)) +* Add `aria-description` to the list of known ARIA attributes. ([#22142](https://github.com/react/react/pull/22142) by [@mahyareb](https://github.com/mahyareb)) +* Add `onResize` event to video elements. ([#21973](https://github.com/react/react/pull/21973) by [@rileyjshaw](https://github.com/rileyjshaw)) +* Add `imageSizes` and `imageSrcSet` to known props. ([#22550](https://github.com/react/react/pull/22550) by [@eps1lon](https://github.com/eps1lon)) +* Allow non-string `<option>` children if `value` is provided. ([#21431](https://github.com/react/react/pull/21431) by [@sebmarkbage](https://github.com/sebmarkbage)) +* Fix `aspectRatio` style not being applied. ([#21100](https://github.com/react/react/pull/21100) by [@gaearon](https://github.com/gaearon)) +* Warn if `renderSubtreeIntoContainer` is called. ([#23355](https://github.com/react/react/pull/23355) by [@acdlite](https://github.com/acdlite)) ### React DOM Server {/*react-dom-server-1*/} -* Add the new streaming renderer. ([#14144](https://github.com/facebook/react/pull/14144), [#20970](https://github.com/facebook/react/pull/20970), [#21056](https://github.com/facebook/react/pull/21056), [#21255](https://github.com/facebook/react/pull/21255), [#21200](https://github.com/facebook/react/pull/21200), [#21257](https://github.com/facebook/react/pull/21257), [#21276](https://github.com/facebook/react/pull/21276), [#22443](https://github.com/facebook/react/pull/22443), [#22450](https://github.com/facebook/react/pull/22450), [#23247](https://github.com/facebook/react/pull/23247), [#24025](https://github.com/facebook/react/pull/24025), [#24030](https://github.com/facebook/react/pull/24030) by [@sebmarkbage](https://github.com/sebmarkbage)) -* Fix context providers in SSR when handling multiple requests. ([#23171](https://github.com/facebook/react/pull/23171) by [@frandiox](https://github.com/frandiox)) -* Revert to client render on text mismatch. ([#23354](https://github.com/facebook/react/pull/23354) by [@acdlite](https://github.com/acdlite)) -* Deprecate `renderToNodeStream`. ([#23359](https://github.com/facebook/react/pull/23359) by [@sebmarkbage](https://github.com/sebmarkbage)) -* Fix a spurious error log in the new server renderer. ([#24043](https://github.com/facebook/react/pull/24043) by [@eps1lon](https://github.com/eps1lon)) -* Fix a bug in the new server renderer. ([#22617](https://github.com/facebook/react/pull/22617) by [@shuding](https://github.com/shuding)) -* Ignore function and symbol values inside custom elements on the server. ([#21157](https://github.com/facebook/react/pull/21157) by [@sebmarkbage](https://github.com/sebmarkbage)) +* Add the new streaming renderer. ([#14144](https://github.com/react/react/pull/14144), [#20970](https://github.com/react/react/pull/20970), [#21056](https://github.com/react/react/pull/21056), [#21255](https://github.com/react/react/pull/21255), [#21200](https://github.com/react/react/pull/21200), [#21257](https://github.com/react/react/pull/21257), [#21276](https://github.com/react/react/pull/21276), [#22443](https://github.com/react/react/pull/22443), [#22450](https://github.com/react/react/pull/22450), [#23247](https://github.com/react/react/pull/23247), [#24025](https://github.com/react/react/pull/24025), [#24030](https://github.com/react/react/pull/24030) by [@sebmarkbage](https://github.com/sebmarkbage)) +* Fix context providers in SSR when handling multiple requests. ([#23171](https://github.com/react/react/pull/23171) by [@frandiox](https://github.com/frandiox)) +* Revert to client render on text mismatch. ([#23354](https://github.com/react/react/pull/23354) by [@acdlite](https://github.com/acdlite)) +* Deprecate `renderToNodeStream`. ([#23359](https://github.com/react/react/pull/23359) by [@sebmarkbage](https://github.com/sebmarkbage)) +* Fix a spurious error log in the new server renderer. ([#24043](https://github.com/react/react/pull/24043) by [@eps1lon](https://github.com/eps1lon)) +* Fix a bug in the new server renderer. ([#22617](https://github.com/react/react/pull/22617) by [@shuding](https://github.com/shuding)) +* Ignore function and symbol values inside custom elements on the server. ([#21157](https://github.com/react/react/pull/21157) by [@sebmarkbage](https://github.com/sebmarkbage)) ### React DOM Test Utils {/*react-dom-test-utils*/} -* Throw when `act` is used in production. ([#21686](https://github.com/facebook/react/pull/21686) by [@acdlite](https://github.com/acdlite)) -* Support disabling spurious act warnings with `global.IS_REACT_ACT_ENVIRONMENT`. ([#22561](https://github.com/facebook/react/pull/22561) by [@acdlite](https://github.com/acdlite)) -* Expand act warning to cover all APIs that might schedule React work. ([#22607](https://github.com/facebook/react/pull/22607) by [@acdlite](https://github.com/acdlite)) -* Make `act` batch updates. ([#21797](https://github.com/facebook/react/pull/21797) by [@acdlite](https://github.com/acdlite)) -* Remove warning for dangling passive effects. ([#22609](https://github.com/facebook/react/pull/22609) by [@acdlite](https://github.com/acdlite)) +* Throw when `act` is used in production. ([#21686](https://github.com/react/react/pull/21686) by [@acdlite](https://github.com/acdlite)) +* Support disabling spurious act warnings with `global.IS_REACT_ACT_ENVIRONMENT`. ([#22561](https://github.com/react/react/pull/22561) by [@acdlite](https://github.com/acdlite)) +* Expand act warning to cover all APIs that might schedule React work. ([#22607](https://github.com/react/react/pull/22607) by [@acdlite](https://github.com/acdlite)) +* Make `act` batch updates. ([#21797](https://github.com/react/react/pull/21797) by [@acdlite](https://github.com/acdlite)) +* Remove warning for dangling passive effects. ([#22609](https://github.com/react/react/pull/22609) by [@acdlite](https://github.com/acdlite)) ### React Refresh {/*react-refresh*/} -* Track late-mounted roots in Fast Refresh. ([#22740](https://github.com/facebook/react/pull/22740) by [@anc95](https://github.com/anc95)) -* Add `exports` field to `package.json`. ([#23087](https://github.com/facebook/react/pull/23087) by [@otakustay](https://github.com/otakustay)) +* Track late-mounted roots in Fast Refresh. ([#22740](https://github.com/react/react/pull/22740) by [@anc95](https://github.com/anc95)) +* Add `exports` field to `package.json`. ([#23087](https://github.com/react/react/pull/23087) by [@otakustay](https://github.com/otakustay)) ### Server Components (Experimental) {/*server-components-experimental*/} -* Add Server Context support. ([#23244](https://github.com/facebook/react/pull/23244) by [@salazarm](https://github.com/salazarm)) -* Add `lazy` support. ([#24068](https://github.com/facebook/react/pull/24068) by [@gnoff](https://github.com/gnoff)) -* Update webpack plugin for webpack 5 ([#22739](https://github.com/facebook/react/pull/22739) by [@michenly](https://github.com/michenly)) -* Fix a mistake in the Node loader. ([#22537](https://github.com/facebook/react/pull/22537) by [@btea](https://github.com/btea)) -* Use `globalThis` instead of `window` for edge environments. ([#22777](https://github.com/facebook/react/pull/22777) by [@huozhi](https://github.com/huozhi)) +* Add Server Context support. ([#23244](https://github.com/react/react/pull/23244) by [@salazarm](https://github.com/salazarm)) +* Add `lazy` support. ([#24068](https://github.com/react/react/pull/24068) by [@gnoff](https://github.com/gnoff)) +* Update webpack plugin for webpack 5 ([#22739](https://github.com/react/react/pull/22739) by [@michenly](https://github.com/michenly)) +* Fix a mistake in the Node loader. ([#22537](https://github.com/react/react/pull/22537) by [@btea](https://github.com/btea)) +* Use `globalThis` instead of `window` for edge environments. ([#22777](https://github.com/react/react/pull/22777) by [@huozhi](https://github.com/huozhi)) diff --git a/src/content/blog/2022/06/15/react-labs-what-we-have-been-working-on-june-2022.md b/src/content/blog/2022/06/15/react-labs-what-we-have-been-working-on-june-2022.md index 1aaa94ec1..b021bc3ff 100644 --- a/src/content/blog/2022/06/15/react-labs-what-we-have-been-working-on-june-2022.md +++ b/src/content/blog/2022/06/15/react-labs-what-we-have-been-working-on-june-2022.md @@ -69,7 +69,7 @@ Currently, React has two profiling tools. The [original Profiler](https://legacy We’ve realized that developers don’t find knowing about individual slow commits or components out of context that useful. It’s more useful to know about what actually causes the slow commits. And that developers want to be able to track specific interactions (eg a button click, an initial load, or a page navigation) to watch for performance regressions and to understand why an interaction was slow and how to fix it. -We previously tried to solve this issue by creating an [Interaction Tracing API](https://gist.github.com/bvaughn/8de925562903afd2e7a12554adcdda16), but it had some fundamental design flaws that reduced the accuracy of tracking why an interaction was slow and sometimes resulted in interactions never ending. We ended up [removing this API](https://github.com/facebook/react/pull/20037) because of these issues. +We previously tried to solve this issue by creating an [Interaction Tracing API](https://gist.github.com/bvaughn/8de925562903afd2e7a12554adcdda16), but it had some fundamental design flaws that reduced the accuracy of tracking why an interaction was slow and sometimes resulted in interactions never ending. We ended up [removing this API](https://github.com/react/react/pull/20037) because of these issues. We are working on a new version for the Interaction Tracing API (tentatively called Transition Tracing because it is initiated via `startTransition`) that solves these problems. diff --git a/src/content/blog/2023/03/16/introducing-react-dev.md b/src/content/blog/2023/03/16/introducing-react-dev.md index f971ddafa..96d2a630d 100644 --- a/src/content/blog/2023/03/16/introducing-react-dev.md +++ b/src/content/blog/2023/03/16/introducing-react-dev.md @@ -279,17 +279,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - isPacked={true} - name="Space suit" + <Item + isPacked={true} + name="Space suit" /> - <Item - isPacked={true} - name="Helmet with a golden leaf" + <Item + isPacked={true} + name="Helmet with a golden leaf" /> - <Item - isPacked={false} - name="Photo of Tam" + <Item + isPacked={false} + name="Photo of Tam" /> </ul> </section> @@ -317,17 +317,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - isPacked={true} - name="Space suit" + <Item + isPacked={true} + name="Space suit" /> - <Item - isPacked={true} - name="Helmet with a golden leaf" + <Item + isPacked={true} + name="Helmet with a golden leaf" /> - <Item - isPacked={false} - name="Photo of Tam" + <Item + isPacked={false} + name="Photo of Tam" /> </ul> </section> @@ -365,17 +365,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - importance={9} - name="Space suit" + <Item + importance={9} + name="Space suit" /> - <Item - importance={0} - name="Helmet with a golden leaf" + <Item + importance={0} + name="Helmet with a golden leaf" /> - <Item - importance={6} - name="Photo of Tam" + <Item + importance={6} + name="Photo of Tam" /> </ul> </section> @@ -409,17 +409,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - importance={9} - name="Space suit" + <Item + importance={9} + name="Space suit" /> - <Item - importance={0} - name="Helmet with a golden leaf" + <Item + importance={0} + name="Helmet with a golden leaf" /> - <Item - importance={6} - name="Photo of Tam" + <Item + importance={6} + name="Photo of Tam" /> </ul> </section> diff --git a/src/content/blog/2024/02/15/react-labs-what-we-have-been-working-on-february-2024.md b/src/content/blog/2024/02/15/react-labs-what-we-have-been-working-on-february-2024.md index c3ab47fad..002dae2a9 100644 --- a/src/content/blog/2024/02/15/react-labs-what-we-have-been-working-on-february-2024.md +++ b/src/content/blog/2024/02/15/react-labs-what-we-have-been-working-on-february-2024.md @@ -49,19 +49,19 @@ We refer to this broader collection of features as simply "Actions". Actions all The `action` function can operate synchronously or asynchronously. You can define them on the client side using standard JavaScript or on the server with the [`'use server'`](/reference/rsc/use-server) directive. When using an action, React will manage the life cycle of the data submission for you, providing hooks like [`useFormStatus`](/reference/react-dom/hooks/useFormStatus), and [`useActionState`](/reference/react/useActionState) to access the current state and response of the form action. -By default, Actions are submitted within a [transition](/reference/react/useTransition), keeping the current page interactive while the action is processing. Since Actions support async functions, we've also added the ability to use `async/await` in transitions. This allows you to show pending UI with the `isPending` state of a transition when an async request like `fetch` starts, and show the pending UI all the way through the update being applied. +By default, Actions are submitted within a [transition](/reference/react/useTransition), keeping the current page interactive while the action is processing. Since Actions support async functions, we've also added the ability to use `async/await` in transitions. This allows you to show pending UI with the `isPending` state of a transition when an async request like `fetch` starts, and show the pending UI all the way through the update being applied. Alongside Actions, we're introducing a feature named [`useOptimistic`](/reference/react/useOptimistic) for managing optimistic state updates. With this hook, you can apply temporary updates that are automatically reverted once the final state commits. For Actions, this allows you to optimistically set the final state of the data on the client, assuming the submission is successful, and revert to the value for data received from the server. It works using regular `async`/`await`, so it works the same whether you're using `fetch` on the client, or a Server Action from the server. Library authors can implement custom `action={fn}` props in their own components with `useTransition`. Our intent is for libraries to adopt the Actions pattern when designing their component APIs, to provide a consistent experience for React developers. For example, if your library provides a `<Calendar onSelect={eventHandler}>` component, consider also exposing a `<Calendar selectAction={action}>` API, too. -While we initially focused on Server Actions for client-server data transfer, our philosophy for React is to provide the same programming model across all platforms and environments. When possible, if we introduce a feature on the client, we aim to make it also work on the server, and vice versa. This philosophy allows us to create a single set of APIs that work no matter where your app runs, making it easier to upgrade to different environments later. +While we initially focused on Server Actions for client-server data transfer, our philosophy for React is to provide the same programming model across all platforms and environments. When possible, if we introduce a feature on the client, we aim to make it also work on the server, and vice versa. This philosophy allows us to create a single set of APIs that work no matter where your app runs, making it easier to upgrade to different environments later. Actions are now available in the Canary channel and will ship in the next release of React. ## New Features in React Canary {/*new-features-in-react-canary*/} -We introduced [React Canaries](/blog/2023/05/03/react-canaries) as an option to adopt individual new stable features as soon as their design is close to final, before they’re released in a stable semver version. +We introduced [React Canaries](/blog/2023/05/03/react-canaries) as an option to adopt individual new stable features as soon as their design is close to final, before they’re released in a stable semver version. Canaries are a change to the way we develop React. Previously, features would be researched and built privately inside of Meta, so users would only see the final polished product when released to Stable. With Canaries, we’re building in public with the help of the community to finalize features we share in the React Labs blog series. This means you hear about new features sooner, as they’re being finalized instead of after they’re complete. @@ -75,7 +75,7 @@ React Server Components, Asset Loading, Document Metadata, and Actions have all - **Actions**: As shared above, we've added Actions to manage sending data from the client to the server. You can add `action` to elements like [`<form/>`](/reference/react-dom/components/form), access the status with [`useFormStatus`](/reference/react-dom/hooks/useFormStatus), handle the result with [`useActionState`](/reference/react/useActionState), and optimistically update the UI with [`useOptimistic`](/reference/react/useOptimistic). -Since all of these features work together, it’s difficult to release them in the Stable channel individually. Releasing Actions without the complementary hooks for accessing form states would limit the practical usability of Actions. Introducing React Server Components without integrating Server Actions would complicate modifying data on the server. +Since all of these features work together, it’s difficult to release them in the Stable channel individually. Releasing Actions without the complementary hooks for accessing form states would limit the practical usability of Actions. Introducing React Server Components without integrating Server Actions would complicate modifying data on the server. Before we can release a set of features to the Stable channel, we need to ensure they work cohesively and developers have everything they need to use them in production. React Canaries allow us to develop these features individually, and release the stable APIs incrementally until the entire feature set is complete. diff --git a/src/content/blog/2024/04/25/react-19-upgrade-guide.md b/src/content/blog/2024/04/25/react-19-upgrade-guide.md index cb83a6176..6f918a2a9 100644 --- a/src/content/blog/2024/04/25/react-19-upgrade-guide.md +++ b/src/content/blog/2024/04/25/react-19-upgrade-guide.md @@ -20,11 +20,11 @@ The improvements added to React 19 require some breaking changes, but we've work #### React 18.3 has also been published {/*react-18-3*/} -To help make the upgrade to React 19 easier, we've published a `react@18.3` release that is identical to 18.2 but adds warnings for deprecated APIs and other changes that are needed for React 19. +To help make the upgrade to React 19 easier, we've published a `react@18.3` release that is identical to 18.2 but adds warnings for deprecated APIs and other changes that are needed for React 19. We recommend upgrading to React 18.3 first to help identify any issues before upgrading to React 19. -For a list of changes in 18.3 see the [Release Notes](https://github.com/facebook/react/blob/main/CHANGELOG.md#1830-april-25-2024). +For a list of changes in 18.3 see the [Release Notes](https://github.com/react/react/blob/main/CHANGELOG.md#1830-april-25-2024). </Note> @@ -38,7 +38,7 @@ In this post, we will guide you through the steps for upgrading to React 19: - [TypeScript changes](#typescript-changes) - [Changelog](#changelog) -If you'd like to help us test React 19, follow the steps in this upgrade guide and [report any issues](https://github.com/facebook/react/issues/new?assignees=&labels=React+19&projects=&template=19.md&title=%5BReact+19%5D) you encounter. For a list of new features added to React 19, see the [React 19 release post](/blog/2024/12/05/react-19). +If you'd like to help us test React 19, follow the steps in this upgrade guide and [report any issues](https://github.com/react/react/issues/new?assignees=&labels=React+19&projects=&template=19.md&title=%5BReact+19%5D) you encounter. For a list of new features added to React 19, see the [React 19 release post](/blog/2024/12/05/react-19). --- ## Installing {/*installing*/} @@ -109,17 +109,17 @@ npx codemod@latest react/19/migration-recipe ``` This will run the following codemods from `react-codemod`: -- [`replace-reactdom-render`](https://github.com/reactjs/react-codemod?tab=readme-ov-file#replace-reactdom-render) +- [`replace-reactdom-render`](https://github.com/reactjs/react-codemod?tab=readme-ov-file#replace-reactdom-render) - [`replace-string-ref`](https://github.com/reactjs/react-codemod?tab=readme-ov-file#replace-string-ref) - [`replace-act-import`](https://github.com/reactjs/react-codemod?tab=readme-ov-file#replace-act-import) -- [`replace-use-form-state`](https://github.com/reactjs/react-codemod?tab=readme-ov-file#replace-use-form-state) +- [`replace-use-form-state`](https://github.com/reactjs/react-codemod?tab=readme-ov-file#replace-use-form-state) - [`prop-types-typescript`](https://github.com/reactjs/react-codemod#react-proptypes-to-prop-types) This does not include the TypeScript changes. See [TypeScript changes](#typescript-changes) below. </Note> -Changes that include a codemod include the command below. +Changes that include a codemod include the command below. For a list of all available codemods, see the [`react-codemod` repo](https://github.com/reactjs/react-codemod). @@ -127,7 +127,7 @@ For a list of all available codemods, see the [`react-codemod` repo](https://git ### Errors in render are not re-thrown {/*errors-in-render-are-not-re-thrown*/} -In previous versions of React, errors thrown during render were caught and rethrown. In DEV, we would also log to `console.error`, resulting in duplicate error logs. +In previous versions of React, errors thrown during render were caught and rethrown. In DEV, we would also log to `console.error`, resulting in duplicate error logs. In React 19, we've [improved how errors are handled](/blog/2024/04/25/react-19#error-handling) to reduce duplication by not re-throwing: @@ -256,7 +256,7 @@ class Child extends React.Component { #### Removed: string refs {/*removed-string-refs*/} String refs were deprecated in [March, 2018 (v16.3.0)](https://legacy.reactjs.org/blog/2018/03/27/update-on-async-rendering.html). -Class components supported string refs before being replaced by ref callbacks due to [multiple downsides](https://github.com/facebook/react/issues/1373). In React 19, we're removing string refs to make React simpler and easier to understand. +Class components supported string refs before being replaced by ref callbacks due to [multiple downsides](https://github.com/react/react/issues/1373). In React 19, we're removing string refs to make React simpler and easier to understand. If you're still using string refs in class components, you'll need to migrate to ref callbacks: @@ -348,7 +348,7 @@ npm install react-shallow-renderer --save-dev ##### Please reconsider shallow rendering {/*please-reconsider-shallow-rendering*/} -Shallow rendering depends on React internals and can block you from future upgrades. We recommend migrating your tests to [@testing-library/react](https://testing-library.com/docs/react-testing-library/intro/) or [@testing-library/react-native](https://testing-library.com/docs/react-native-testing-library/intro). +Shallow rendering depends on React internals and can block you from future upgrades. We recommend migrating your tests to [@testing-library/react](https://testing-library.com/docs/react-testing-library/intro/) or [@testing-library/react-native](https://testing-library.com/docs/react-native-testing-library/intro). </Note> @@ -465,7 +465,7 @@ npx codemod@latest react/19/replace-reactdom-render #### Removed: `ReactDOM.findDOMNode` {/*removed-reactdom-finddomnode*/} -`ReactDOM.findDOMNode` was [deprecated in October 2018 (v16.6.0)](https://legacy.reactjs.org/blog/2018/10/23/react-v-16-6.html#deprecations-in-strictmode). +`ReactDOM.findDOMNode` was [deprecated in October 2018 (v16.6.0)](https://legacy.reactjs.org/blog/2018/10/23/react-v-16-6.html#deprecations-in-strictmode). We're removing `findDOMNode` because it was a legacy escape hatch that was slow to execute, fragile to refactoring, only returned the first child, and broke abstraction levels (see more [here](https://legacy.reactjs.org/docs/strict-mode.html#warning-about-deprecated-finddomnode-usage)). You can replace `ReactDOM.findDOMNode` with [DOM refs](/learn/manipulating-the-dom-with-refs): @@ -551,7 +551,7 @@ This change means Suspense fallbacks display faster, while still warming lazy re ### UMD builds removed {/*umd-builds-removed*/} -UMD was widely used in the past as a convenient way to load React without a build step. Now, there are modern alternatives for loading modules as scripts in HTML documents. Starting with React 19, React will no longer produce UMD builds to reduce the complexity of its testing and release process. +UMD was widely used in the past as a convenient way to load React without a build step. Now, there are modern alternatives for loading modules as scripts in HTML documents. Starting with React 19, React will no longer produce UMD builds to reduce the complexity of its testing and release process. To load React 19 with a script tag, we recommend using an ESM-based CDN such as [esm.sh](https://esm.sh/). @@ -569,7 +569,7 @@ This release includes changes to React internals that may impact libraries that Based on our [Versioning Policy](https://react.dev/community/versioning-policy#what-counts-as-a-breaking-change), these updates are not listed as breaking changes, and we are not including docs for how to upgrade them. The recommendation is to remove any code that depends on internals. -To reflect the impact of using internals, we have renamed the `SECRET_INTERNALS` suffix to: +To reflect the impact of using internals, we have renamed the `SECRET_INTERNALS` suffix to: `_DO_NOT_USE_OR_WARN_USERS_THEY_CANNOT_UPGRADE` @@ -730,24 +730,24 @@ const reducer = (state: State, action: Action) => state; ### Other breaking changes {/*other-breaking-changes*/} -- **react-dom**: Error for javascript URLs in `src` and `href` [#26507](https://github.com/facebook/react/pull/26507) -- **react-dom**: Remove `errorInfo.digest` from `onRecoverableError` [#28222](https://github.com/facebook/react/pull/28222) -- **react-dom**: Remove `unstable_flushControlled` [#26397](https://github.com/facebook/react/pull/26397) -- **react-dom**: Remove `unstable_createEventHandle` [#28271](https://github.com/facebook/react/pull/28271) -- **react-dom**: Remove `unstable_renderSubtreeIntoContainer` [#28271](https://github.com/facebook/react/pull/28271) -- **react-dom**: Remove `unstable_runWithPriority` [#28271](https://github.com/facebook/react/pull/28271) -- **react-is**: Remove deprecated methods from `react-is` [28224](https://github.com/facebook/react/pull/28224) +- **react-dom**: Error for javascript URLs in `src` and `href` [#26507](https://github.com/react/react/pull/26507) +- **react-dom**: Remove `errorInfo.digest` from `onRecoverableError` [#28222](https://github.com/react/react/pull/28222) +- **react-dom**: Remove `unstable_flushControlled` [#26397](https://github.com/react/react/pull/26397) +- **react-dom**: Remove `unstable_createEventHandle` [#28271](https://github.com/react/react/pull/28271) +- **react-dom**: Remove `unstable_renderSubtreeIntoContainer` [#28271](https://github.com/react/react/pull/28271) +- **react-dom**: Remove `unstable_runWithPriority` [#28271](https://github.com/react/react/pull/28271) +- **react-is**: Remove deprecated methods from `react-is` [28224](https://github.com/react/react/pull/28224) ### Other notable changes {/*other-notable-changes*/} -- **react**: Batch sync, default and continuous lanes [#25700](https://github.com/facebook/react/pull/25700) -- **react**: Don't prerender siblings of suspended component [#26380](https://github.com/facebook/react/pull/26380) -- **react**: Detect infinite update loops caused by render phase updates [#26625](https://github.com/facebook/react/pull/26625) -- **react-dom**: Transitions in popstate are now synchronous [#26025](https://github.com/facebook/react/pull/26025) -- **react-dom**: Remove layout effect warning during SSR [#26395](https://github.com/facebook/react/pull/26395) -- **react-dom**: Warn and don’t set empty string for src/href (except anchor tags) [#28124](https://github.com/facebook/react/pull/28124) +- **react**: Batch sync, default and continuous lanes [#25700](https://github.com/react/react/pull/25700) +- **react**: Don't prerender siblings of suspended component [#26380](https://github.com/react/react/pull/26380) +- **react**: Detect infinite update loops caused by render phase updates [#26625](https://github.com/react/react/pull/26625) +- **react-dom**: Transitions in popstate are now synchronous [#26025](https://github.com/react/react/pull/26025) +- **react-dom**: Remove layout effect warning during SSR [#26395](https://github.com/react/react/pull/26395) +- **react-dom**: Warn and don’t set empty string for src/href (except anchor tags) [#28124](https://github.com/react/react/pull/28124) -For a full list of changes, please see the [Changelog](https://github.com/facebook/react/blob/main/CHANGELOG.md#1900-december-5-2024). +For a full list of changes, please see the [Changelog](https://github.com/react/react/blob/main/CHANGELOG.md#1900-december-5-2024). --- diff --git a/src/content/blog/2024/05/22/react-conf-2024-recap.md b/src/content/blog/2024/05/22/react-conf-2024-recap.md index e22464010..d0774782a 100644 --- a/src/content/blog/2024/05/22/react-conf-2024-recap.md +++ b/src/content/blog/2024/05/22/react-conf-2024-recap.md @@ -45,7 +45,7 @@ Next in the keynote, [Josh Story](https://twitter.com/joshcstory) and [Andrew Cl - [React for Two Computers](https://www.youtube.com/watch?v=T8TZQ6k4SLE&t=18825s) by [Dan Abramov](https://bsky.app/profile/danabra.mov) - [And Now You Understand React Server Components](https://www.youtube.com/watch?v=0ckOUBiuxVY&t=11256s) by [Kent C. Dodds](https://twitter.com/kentcdodds) -Finally, we ended the keynote with [Joe Savona](https://twitter.com/en_JS), [Sathya Gunasekaran](https://twitter.com/_gsathya), and [Mofei Zhang](https://twitter.com/zmofei) announcing that the React Compiler is now [Open Source](https://github.com/facebook/react/pull/29061), and sharing an experimental version of the React Compiler to try out. +Finally, we ended the keynote with [Joe Savona](https://twitter.com/en_JS), [Sathya Gunasekaran](https://twitter.com/_gsathya), and [Mofei Zhang](https://twitter.com/zmofei) announcing that the React Compiler is now [Open Source](https://github.com/react/react/pull/29061), and sharing an experimental version of the React Compiler to try out. For more information on using the Compiler and how it works, check out [the docs](/learn/react-compiler) and these talks: diff --git a/src/content/blog/2024/10/21/react-compiler-beta-release.md b/src/content/blog/2024/10/21/react-compiler-beta-release.md index 750c0f3b8..5cc5f19ae 100644 --- a/src/content/blog/2024/10/21/react-compiler-beta-release.md +++ b/src/content/blog/2024/10/21/react-compiler-beta-release.md @@ -92,7 +92,7 @@ Because your code is pre-compiled, users of your library will not need to have t We previously announced the invite-only [React Compiler Working Group](https://github.com/reactwg/react-compiler) at React Conf to provide feedback, ask questions, and collaborate on the compiler's experimental release. -From today, together with the Beta release of React Compiler, we are opening up Working Group membership to everyone. The goal of the React Compiler Working Group is to prepare the ecosystem for a smooth, gradual adoption of React Compiler by existing applications and libraries. Please continue to file bug reports in the [React repo](https://github.com/facebook/react), but please leave feedback, ask questions, or share ideas in the [Working Group discussion forum](https://github.com/reactwg/react-compiler/discussions). +From today, together with the Beta release of React Compiler, we are opening up Working Group membership to everyone. The goal of the React Compiler Working Group is to prepare the ecosystem for a smooth, gradual adoption of React Compiler by existing applications and libraries. Please continue to file bug reports in the [React repo](https://github.com/react/react), but please leave feedback, ask questions, or share ideas in the [Working Group discussion forum](https://github.com/reactwg/react-compiler/discussions). The core team will also use the discussions repo to share our research findings. As the Stable Release gets closer, any important information will also be posted on this forum. @@ -127,7 +127,7 @@ Thanks to [Sathya Gunasekaran](https://twitter.com/_gsathya), [Joe Savona](https --- -[^1]: Thanks [@nikeee](https://github.com/facebook/react/pulls?q=is%3Apr+author%3Anikeee), [@henryqdineen](https://github.com/facebook/react/pulls?q=is%3Apr+author%3Ahenryqdineen), [@TrickyPi](https://github.com/facebook/react/pulls?q=is%3Apr+author%3ATrickyPi), and several others for their contributions to the compiler. +[^1]: Thanks [@nikeee](https://github.com/react/react/pulls?q=is%3Apr+author%3Anikeee), [@henryqdineen](https://github.com/react/react/pulls?q=is%3Apr+author%3Ahenryqdineen), [@TrickyPi](https://github.com/react/react/pulls?q=is%3Apr+author%3ATrickyPi), and several others for their contributions to the compiler. [^2]: Thanks [Vaishali Garg](https://www.linkedin.com/in/vaishaligarg09) for leading this study on React Compiler at Meta, and for reviewing this post. diff --git a/src/content/blog/2024/12/05/react-19.md b/src/content/blog/2024/12/05/react-19.md index 4e9aad8e8..93ac0c360 100644 --- a/src/content/blog/2024/12/05/react-19.md +++ b/src/content/blog/2024/12/05/react-19.md @@ -59,7 +59,7 @@ function UpdateName({}) { if (error) { setError(error); return; - } + } redirect("/path"); }; @@ -92,7 +92,7 @@ function UpdateName({}) { if (error) { setError(error); return; - } + } redirect("/path"); }) }; @@ -176,13 +176,13 @@ const [error, submitAction, isPending] = useActionState( ); ``` -`useActionState` accepts a function (the "Action"), and returns a wrapped Action to call. This works because Actions compose. When the wrapped Action is called, `useActionState` will return the last result of the Action as `data`, and the pending state of the Action as `pending`. +`useActionState` accepts a function (the "Action"), and returns a wrapped Action to call. This works because Actions compose. When the wrapped Action is called, `useActionState` will return the last result of the Action as `data`, and the pending state of the Action as `pending`. <Note> `React.useActionState` was previously called `ReactDOM.useFormState` in the Canary releases, but we've renamed it and deprecated `useFormState`. -See [#28491](https://github.com/facebook/react/pull/28491) for more info. +See [#28491](https://github.com/react/react/pull/28491) for more info. </Note> @@ -308,7 +308,7 @@ function Heading({children}) { if (children == null) { return null; } - + // This would not work with useContext // because of the early return. const theme = use(ThemeContext); @@ -330,7 +330,7 @@ We've added two new APIs to `react-dom/static` for static site generation: - [`prerender`](/reference/react-dom/static/prerender) - [`prerenderToNodeStream`](/reference/react-dom/static/prerenderToNodeStream) -These new APIs improve on `renderToString` by waiting for data to load for static HTML generation. They are designed to work with streaming environments like Node.js Streams and Web Streams. For example, in a Web Stream environment, you can prerender a React tree to static HTML with `prerender`: +These new APIs improve on `renderToString` by waiting for data to load for static HTML generation. They are designed to work with streaming environments like Node.js Streams and Web Streams. For example, in a Web Stream environment, you can prerender a React tree to static HTML with `prerender`: ```js import { prerender } from 'react-dom/static'; @@ -355,14 +355,14 @@ For more information, see [React DOM Static APIs](/reference/react-dom/static). Server Components are a new option that allows rendering components ahead of time, before bundling, in an environment separate from your client application or SSR server. This separate environment is the "server" in React Server Components. Server Components can run once at build time on your CI server, or they can be run for each request using a web server. -React 19 includes all of the React Server Components features included from the Canary channel. This means libraries that ship with Server Components can now target React 19 as a peer dependency with a `react-server` [export condition](https://github.com/reactjs/rfcs/blob/main/text/0227-server-module-conventions.md#react-server-conditional-exports) for use in frameworks that support the [Full-stack React Architecture](/learn/creating-a-react-app#which-features-make-up-the-react-teams-full-stack-architecture-vision). +React 19 includes all of the React Server Components features included from the Canary channel. This means libraries that ship with Server Components can now target React 19 as a peer dependency with a `react-server` [export condition](https://github.com/reactjs/rfcs/blob/main/text/0227-server-module-conventions.md#react-server-conditional-exports) for use in frameworks that support the [Full-stack React Architecture](/learn/creating-a-react-app#which-features-make-up-the-react-teams-full-stack-architecture-vision). <Note> #### How do I build support for Server Components? {/*how-do-i-build-support-for-server-components*/} -While React Server Components in React 19 are stable and will not break between minor versions, the underlying APIs used to implement a React Server Components bundler or framework do not follow semver and may break between minors in React 19.x. +While React Server Components in React 19 are stable and will not break between minor versions, the underlying APIs used to implement a React Server Components bundler or framework do not follow semver and may break between minors in React 19.x. To support React Server Components as a bundler or framework, we recommend pinning to a specific React version, or using the Canary release. We will continue working with bundlers and frameworks to stabilize the APIs used to implement React Server Components in the future. @@ -497,7 +497,7 @@ function App({children}) { <ThemeContext value="dark"> {children} </ThemeContext> - ); + ); } ``` @@ -521,7 +521,7 @@ We now support returning a cleanup function from `ref` callbacks: /> ``` -When the component unmounts, React will call the cleanup function returned from the `ref` callback. This works for DOM refs, refs to class components, and `useImperativeHandle`. +When the component unmounts, React will call the cleanup function returned from the `ref` callback. This works for DOM refs, refs to class components, and `useImperativeHandle`. <Note> @@ -551,7 +551,7 @@ function Search({deferredValue}) { // On initial render the value is ''. // Then a re-render is scheduled with the deferredValue. const value = useDeferredValue(deferredValue, ''); - + return ( <Results query={value} /> ); @@ -564,7 +564,7 @@ For more, see [`useDeferredValue`](/reference/react/useDeferredValue). ### Support for Document Metadata {/*support-for-metadata-tags*/} -In HTML, document metadata tags like `<title>`, `<link>`, and `<meta>` are reserved for placement in the `<head>` section of the document. In React, the component that decides what metadata is appropriate for the app may be very far from the place where you render the `<head>` or React does not render the `<head>` at all. In the past, these elements would need to be inserted manually in an effect, or by libraries like [`react-helmet`](https://github.com/nfl/react-helmet), and required careful handling when server rendering a React application. +In HTML, document metadata tags like `<title>`, `<link>`, and `<meta>` are reserved for placement in the `<head>` section of the document. In React, the component that decides what metadata is appropriate for the app may be very far from the place where you render the `<head>` or React does not render the `<head>` at all. In the past, these elements would need to be inserted manually in an effect, or by libraries like [`react-helmet`](https://github.com/nfl/react-helmet), and required careful handling when server rendering a React application. In React 19, we're adding support for rendering document metadata tags in components natively: @@ -726,7 +726,7 @@ In React 19, unexpected tags in the `<head>` and `<body>` will be skipped over, ### Better error reporting {/*error-handling*/} -We improved error handling in React 19 to remove duplication and provide options for handling caught and uncaught errors. For example, when there's an error in render caught by an Error Boundary, previously React would throw the error twice (once for the original error, then again after failing to automatically recover), and then call `console.error` with info about where the error occurred. +We improved error handling in React 19 to remove duplication and provide options for handling caught and uncaught errors. For example, when there's an error in render caught by an Error Boundary, previously React would throw the error twice (once for the original error, then again after failing to automatically recover), and then call `console.error` with info about where the error occurred. This resulted in three errors for every caught error: diff --git a/src/content/blog/2025/02/14/sunsetting-create-react-app.md b/src/content/blog/2025/02/14/sunsetting-create-react-app.md index 6f3e95d81..45c0090d5 100644 --- a/src/content/blog/2025/02/14/sunsetting-create-react-app.md +++ b/src/content/blog/2025/02/14/sunsetting-create-react-app.md @@ -11,7 +11,7 @@ February 14, 2025 by [Matt Carroll](https://twitter.com/mattcarrollcode) and [Ri <Intro> -Today, we’re deprecating [Create React App](https://create-react-app.dev/) for new apps, and encouraging existing apps to migrate to a [framework](#how-to-migrate-to-a-framework), or to [migrate to a build tool](#how-to-migrate-to-a-build-tool) like Vite, Parcel, or RSBuild. +Today, we’re deprecating [Create React App](https://create-react-app.dev/) for new apps, and encouraging existing apps to migrate to a [framework](#how-to-migrate-to-a-framework), or to [migrate to a build tool](#how-to-migrate-to-a-build-tool) like Vite, Parcel, or RSBuild. We’re also providing docs for when a framework isn’t a good fit for your project, you want to build your own framework, or you just want to learn how React works by [building a React app from scratch](/learn/build-a-react-app-from-scratch). @@ -75,7 +75,7 @@ To help get started with Vite, Parcel or Rsbuild, we've added new docs for [Buil #### Do I need a framework? {/*do-i-need-a-framework*/} -Most apps would benefit from a framework, but there are valid cases to build a React app from scratch. A good rule of thumb is if your app needs routing, you would probably benefit from a framework. +Most apps would benefit from a framework, but there are valid cases to build a React app from scratch. A good rule of thumb is if your app needs routing, you would probably benefit from a framework. Just like Svelte has Sveltekit, Vue has Nuxt, and Solid has SolidStart, [React recommends using a framework](#why-we-recommend-frameworks) that fully integrates routing into features like data-fetching and code-splitting out of the box. This avoids the pain of needing to write your own complex configurations and essentially build a framework yourself. diff --git a/src/content/blog/2025/04/23/react-labs-view-transitions-activity-and-more.md b/src/content/blog/2025/04/23/react-labs-view-transitions-activity-and-more.md index 9b6095f8b..dbd673a29 100644 --- a/src/content/blog/2025/04/23/react-labs-view-transitions-activity-and-more.md +++ b/src/content/blog/2025/04/23/react-labs-view-transitions-activity-and-more.md @@ -11458,7 +11458,7 @@ root.render( If you're curious to know more about how they work, check out [How Does `<ViewTransition>` Work](/reference/react/ViewTransition#how-does-viewtransition-work) in the docs. -_For more background on how we built View Transitions, see: [#31975](https://github.com/facebook/react/pull/31975), [#32105](https://github.com/facebook/react/pull/32105), [#32041](https://github.com/facebook/react/pull/32041), [#32734](https://github.com/facebook/react/pull/32734), [#32797](https://github.com/facebook/react/pull/32797) [#31999](https://github.com/facebook/react/pull/31999), [#32031](https://github.com/facebook/react/pull/32031), [#32050](https://github.com/facebook/react/pull/32050), [#32820](https://github.com/facebook/react/pull/32820), [#32029](https://github.com/facebook/react/pull/32029), [#32028](https://github.com/facebook/react/pull/32028), and [#32038](https://github.com/facebook/react/pull/32038) by [@sebmarkbage](https://twitter.com/sebmarkbage) (thanks Seb!)._ +_For more background on how we built View Transitions, see: [#31975](https://github.com/react/react/pull/31975), [#32105](https://github.com/react/react/pull/32105), [#32041](https://github.com/react/react/pull/32041), [#32734](https://github.com/react/react/pull/32734), [#32797](https://github.com/react/react/pull/32797) [#31999](https://github.com/react/react/pull/31999), [#32031](https://github.com/react/react/pull/32031), [#32050](https://github.com/react/react/pull/32050), [#32820](https://github.com/react/react/pull/32820), [#32029](https://github.com/react/react/pull/32029), [#32028](https://github.com/react/react/pull/32028), and [#32038](https://github.com/react/react/pull/32038) by [@sebmarkbage](https://twitter.com/sebmarkbage) (thanks Seb!)._ --- diff --git a/src/content/blog/2025/10/01/react-19-2.md b/src/content/blog/2025/10/01/react-19-2.md index 51c30f70a..feee6cdb6 100644 --- a/src/content/blog/2025/10/01/react-19-2.md +++ b/src/content/blog/2025/10/01/react-19-2.md @@ -300,7 +300,7 @@ To continue using the legacy config, you can change to `recommended-legacy`: For a full list of compiler enabled rules, [check out the linter docs](/reference/eslint-plugin-react-hooks#recommended). -Check out the `eslint-plugin-react-hooks` [changelog for a full list of changes](https://github.com/facebook/react/blob/main/packages/eslint-plugin-react-hooks/CHANGELOG.md#610). +Check out the `eslint-plugin-react-hooks` [changelog for a full list of changes](https://github.com/react/react/blob/main/packages/eslint-plugin-react-hooks/CHANGELOG.md#610). --- @@ -315,23 +315,23 @@ The original intent of using a special character that was not valid for CSS sele ## Changelog {/*changelog*/} Other notable changes -- `react-dom`: Allow nonce to be used on hoistable styles [#32461](https://github.com/facebook/react/pull/32461) -- `react-dom`: Warn for using a React owned node as a Container if it also has text content [#32774](https://github.com/facebook/react/pull/32774) +- `react-dom`: Allow nonce to be used on hoistable styles [#32461](https://github.com/react/react/pull/32461) +- `react-dom`: Warn for using a React owned node as a Container if it also has text content [#32774](https://github.com/react/react/pull/32774) Notable bug fixes -- `react`: Stringify context as "SomeContext" instead of "SomeContext.Provider" [#33507](https://github.com/facebook/react/pull/33507) -- `react`: Fix infinite useDeferredValue loop in popstate event [#32821](https://github.com/facebook/react/pull/32821) -- `react`: Fix a bug when an initial value was passed to useDeferredValue [#34376](https://github.com/facebook/react/pull/34376) -- `react`: Fix a crash when submitting forms with Client Actions [#33055](https://github.com/facebook/react/pull/33055) -- `react`: Hide/unhide the content of dehydrated suspense boundaries if they resuspend [#32900](https://github.com/facebook/react/pull/32900) -- `react`: Avoid stack overflow on wide trees during Hot Reload [#34145](https://github.com/facebook/react/pull/34145) -- `react`: Improve component stacks in various places [#33629](https://github.com/facebook/react/pull/33629), [#33724](https://github.com/facebook/react/pull/33724), [#32735](https://github.com/facebook/react/pull/32735), [#33723](https://github.com/facebook/react/pull/33723) -- `react`: Fix a bug with React.use inside React.lazy-ed Component [#33941](https://github.com/facebook/react/pull/33941) -- `react-dom`: Stop warning when ARIA 1.3 attributes are used [#34264](https://github.com/facebook/react/pull/34264) -- `react-dom`: Fix a bug with deeply nested Suspense inside Suspense fallbacks [#33467](https://github.com/facebook/react/pull/33467) -- `react-dom`: Avoid hanging when suspending after aborting while rendering [#34192](https://github.com/facebook/react/pull/34192) - -For a full list of changes, please see the [Changelog](https://github.com/facebook/react/blob/main/CHANGELOG.md). +- `react`: Stringify context as "SomeContext" instead of "SomeContext.Provider" [#33507](https://github.com/react/react/pull/33507) +- `react`: Fix infinite useDeferredValue loop in popstate event [#32821](https://github.com/react/react/pull/32821) +- `react`: Fix a bug when an initial value was passed to useDeferredValue [#34376](https://github.com/react/react/pull/34376) +- `react`: Fix a crash when submitting forms with Client Actions [#33055](https://github.com/react/react/pull/33055) +- `react`: Hide/unhide the content of dehydrated suspense boundaries if they resuspend [#32900](https://github.com/react/react/pull/32900) +- `react`: Avoid stack overflow on wide trees during Hot Reload [#34145](https://github.com/react/react/pull/34145) +- `react`: Improve component stacks in various places [#33629](https://github.com/react/react/pull/33629), [#33724](https://github.com/react/react/pull/33724), [#32735](https://github.com/react/react/pull/32735), [#33723](https://github.com/react/react/pull/33723) +- `react`: Fix a bug with React.use inside React.lazy-ed Component [#33941](https://github.com/react/react/pull/33941) +- `react-dom`: Stop warning when ARIA 1.3 attributes are used [#34264](https://github.com/react/react/pull/34264) +- `react-dom`: Fix a bug with deeply nested Suspense inside Suspense fallbacks [#33467](https://github.com/react/react/pull/33467) +- `react-dom`: Avoid hanging when suspending after aborting while rendering [#34192](https://github.com/react/react/pull/34192) + +For a full list of changes, please see the [Changelog](https://github.com/react/react/blob/main/CHANGELOG.md). --- diff --git a/src/content/blog/2025/10/07/react-compiler-1.md b/src/content/blog/2025/10/07/react-compiler-1.md index 080f3586e..ee5ffa4fd 100644 --- a/src/content/blog/2025/10/07/react-compiler-1.md +++ b/src/content/blog/2025/10/07/react-compiler-1.md @@ -132,7 +132,7 @@ export default defineConfig([ } ``` -To enable React Compiler rules, we recommend using the `recommended` preset. You can also check out the [README](https://github.com/facebook/react/blob/main/packages/eslint-plugin-react-hooks/README.md) for more instructions. Here are a few examples we featured at React Conf: +To enable React Compiler rules, we recommend using the `recommended` preset. You can also check out the [README](https://github.com/react/react/blob/main/packages/eslint-plugin-react-hooks/README.md) for more instructions. Here are a few examples we featured at React Conf: - Catching `setState` patterns that cause render loops with [`set-state-in-render`](/reference/eslint-plugin-react-hooks/lints/set-state-in-render). - Flagging expensive work inside effects via [`set-state-in-effect`](/reference/eslint-plugin-react-hooks/lints/set-state-in-effect). diff --git a/src/content/blog/2025/12/03/critical-security-vulnerability-in-react-server-components.md b/src/content/blog/2025/12/03/critical-security-vulnerability-in-react-server-components.md index 310a84116..a669a2c4e 100644 --- a/src/content/blog/2025/12/03/critical-security-vulnerability-in-react-server-components.md +++ b/src/content/blog/2025/12/03/critical-security-vulnerability-in-react-server-components.md @@ -34,7 +34,7 @@ The vulnerability is present in versions 19.0, 19.1.0, 19.1.1, and 19.2.0 of: ## Immediate Action Required {/*immediate-action-required*/} -A fix was introduced in versions [19.0.1](https://github.com/facebook/react/releases/tag/v19.0.1), [19.1.2](https://github.com/facebook/react/releases/tag/v19.1.2), and [19.2.1](https://github.com/facebook/react/releases/tag/v19.2.1). If you are using any of the above packages please upgrade to any of the fixed versions immediately. +A fix was introduced in versions [19.0.1](https://github.com/react/react/releases/tag/v19.0.1), [19.1.2](https://github.com/react/react/releases/tag/v19.1.2), and [19.2.1](https://github.com/react/react/releases/tag/v19.2.1). If you are using any of the above packages please upgrade to any of the fixed versions immediately. If your app’s React code does not use a server, your app is not affected by this vulnerability. If your app does not use a framework, bundler, or bundler plugin that supports React Server Components, your app is not affected by this vulnerability. @@ -193,7 +193,7 @@ If you are using React Native in a monorepo, you should update _only_ the impact This is required to mitigate the security advisory, but you do not need to update `react` and `react-dom` so this will not cause the version mismatch error in React Native. -See [this issue](https://github.com/facebook/react-native/issues/54772#issuecomment-3617929832) for more information. +See [this issue](https://github.com/react/react-native/issues/54772#issuecomment-3617929832) for more information. ## Timeline {/*timeline*/} diff --git a/src/content/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components.md b/src/content/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components.md index dc049c78c..206d49e39 100644 --- a/src/content/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components.md +++ b/src/content/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components.md @@ -98,7 +98,7 @@ If you are using React Native in a monorepo, you should update _only_ the impact This is required to mitigate the security advisories, but you do not need to update `react` and `react-dom` so this will not cause the version mismatch error in React Native. -See [this issue](https://github.com/facebook/react-native/issues/54772#issuecomment-3617929832) for more information. +See [this issue](https://github.com/react/react-native/issues/54772#issuecomment-3617929832) for more information. --- @@ -176,7 +176,7 @@ The patches published today prevent stringifying the Server Function source code Secrets hardcoded in source code may be exposed, but runtime secrets such as `process.env.SECRET` are not affected. -The scope of the exposed code is limited to the code inside the Server Function, which may include other functions depending on the amount of inlining your bundler provides. +The scope of the exposed code is limited to the code inside the Server Function, which may include other functions depending on the amount of inlining your bundler provides. Always verify against production bundles. diff --git a/src/content/blog/index.md b/src/content/blog/index.md index c75265fdb..d2930fead 100644 --- a/src/content/blog/index.md +++ b/src/content/blog/index.md @@ -150,7 +150,7 @@ The React team is excited to share a few updates: ### All release notes {/*all-release-notes*/} -Not every React release deserves its own blog post, but you can find a detailed changelog for every release in the [`CHANGELOG.md`](https://github.com/facebook/react/blob/main/CHANGELOG.md) file in the React repository, as well as on the [Releases](https://github.com/facebook/react/releases) page. +Not every React release deserves its own blog post, but you can find a detailed changelog for every release in the [`CHANGELOG.md`](https://github.com/react/react/blob/main/CHANGELOG.md) file in the React repository, as well as on the [Releases](https://github.com/react/react/releases) page. --- diff --git a/src/content/community/acknowledgements.md b/src/content/community/acknowledgements.md index bfe67f55a..7c84285f9 100644 --- a/src/content/community/acknowledgements.md +++ b/src/content/community/acknowledgements.md @@ -4,7 +4,7 @@ title: Acknowledgements <Intro> -React was originally created by [Jordan Walke.](https://github.com/jordwalke) Today, React has a [dedicated full-time team working on it](/community/team), as well as over a thousand [open source contributors.](https://github.com/facebook/react/graphs/contributors) +React was originally created by [Jordan Walke.](https://github.com/jordwalke) Today, React has a [dedicated full-time team working on it](/community/team), as well as over a thousand [open source contributors.](https://github.com/react/react/graphs/contributors) </Intro> diff --git a/src/content/community/conferences.md b/src/content/community/conferences.md index ada81a60b..2e95e24ea 100644 --- a/src/content/community/conferences.md +++ b/src/content/community/conferences.md @@ -25,6 +25,11 @@ September 10-11, 2026. In-person in Zurich, Switzerland [Website](https://conf.zurichjs.com?utm_campaign=ZurichJS_Conf&utm_source=referral&utm_content=reactjs_community_conferences) - [Twitter](https://x.com/zurichjs) - [LinkedIn](https://www.linkedin.com/company/zurichjs/) +### React Conf Japan 2027 {/*react-conf-japan-2027*/} +April 24, 2027. In-person in Tokyo, Japan + +[Website](https://reactconf.jp/) - [Twitter](https://x.com/reactconfjp) + ## Past Conferences {/*past-conferences*/} ### CityJS New Delhi 2026 {/*cityjs-newdelhi-2026*/} @@ -219,7 +224,7 @@ May 15 - 16, 2024. In-person in Henderson, NV, USA + remote [Website](https://conf.react.dev) - [Twitter](https://twitter.com/reactjs) ### React Native Connection 2024 {/*react-native-connection-2024*/} -April 23, 2024. In-person in Paris, France +April 23, 2024. In-person in Paris, France [Website](https://reactnativeconnection.io/) - [Twitter](https://twitter.com/ReactNativeConn) @@ -261,7 +266,7 @@ October 20 & 23, 2023. In-person in London, UK + remote first interactivity (hyb ### React Brussels 2023 {/*react-brussels-2023*/} October 13th 2023. In-person in Brussels, Belgium + Remote (hybrid) -[Website](https://www.react.brussels/) - [Twitter](https://twitter.com/BrusselsReact) - [Videos](https://www.youtube.com/playlist?list=PL53Z0yyYnpWh85KeMomUoVz8_brrmh_aC) +[Website](https://www.react.brussels/) - [Twitter](https://twitter.com/BrusselsReact) - [Videos](https://www.youtube.com/playlist?list=PL53Z0yyYnpWh85KeMomUoVz8_brrmh_aC) ### React India 2023 {/*react-india-2023*/} October 5 - 7, 2023. In-person in Goa, India (hybrid event) + Oct 3 2023 - remote day @@ -284,7 +289,7 @@ September 28 - 30, 2023. Alicante, Spain [Website](https://reactalicante.es/) - [Twitter](https://twitter.com/reactalicante) ### RedwoodJS Conference 2023 {/*redwoodjs-conference-2023*/} -September 26 - 29, 2023. Grants Pass, Oregon + remote (hybrid event) +September 26 - 29, 2023. Grants Pass, Oregon + remote (hybrid event) [Website](https://www.redwoodjsconf.com/) - [Twitter](https://twitter.com/redwoodjs) diff --git a/src/content/community/index.md b/src/content/community/index.md index cf8f9323b..9bd0d09cf 100644 --- a/src/content/community/index.md +++ b/src/content/community/index.md @@ -10,7 +10,7 @@ React has a community of millions of developers. On this page we've listed some ## Code of Conduct {/*code-of-conduct*/} -Before participating in React's communities, [please read our Code of Conduct.](https://github.com/facebook/react/blob/main/CODE_OF_CONDUCT.md) We have adopted the [Contributor Covenant](https://www.contributor-covenant.org/) and we expect that all community members adhere to the guidelines within. +Before participating in React's communities, [please read our Code of Conduct.](https://github.com/react/react/blob/main/CODE_OF_CONDUCT.md) We have adopted the [Contributor Covenant](https://www.contributor-covenant.org/) and we expect that all community members adhere to the guidelines within. ## Stack Overflow {/*stack-overflow*/} diff --git a/src/content/community/team.md b/src/content/community/team.md index da4ce0791..e321f240b 100644 --- a/src/content/community/team.md +++ b/src/content/community/team.md @@ -4,100 +4,144 @@ title: "Meet the Team" <Intro> -React development is led by a dedicated team working full time at Meta. It also receives contributions from people all over the world. +React development is led by contributors from companies and communities all over the world. </Intro> -## React Core {/*react-core*/} +React work is organized into working groups, each responsible for an area of the project such as Server, DOM, Fiber, Docs & Community, Compiler, DevX, and React Native. Each working group is represented on the React Leadership Council, which coordinates direction across the project. -The React Core team members work full time on the core component APIs, the engine that powers React DOM and React Native, React DevTools, and the React documentation website. +## Leadership Council {/*leadership-council*/} -Current members of the React team are listed in alphabetical order below. - -<TeamMember name="Andrew Clark" permalink="andrew-clark" photo="/images/team/acdlite.jpg" github="acdlite" twitter="acdlite" threads="acdlite" title="Engineer at Vercel"> +<TeamMember name="Andrew Clark" permalink="andrew-clark" photo="/images/team/acdlite.jpg" github="acdlite" twitter="acdlite" threads="acdlite" title="Engineer at Vercel" group="Fiber*, DOM"> Andrew got started with web development by making sites with WordPress, and eventually tricked himself into doing JavaScript. His favorite pastime is karaoke. Andrew is either a Disney villain or a Disney princess, depending on the day. </TeamMember> -<TeamMember name="Dan Abramov" permalink="dan-abramov" photo="/images/team/gaearon.jpg" github="gaearon" bsky="danabra.mov" title="Independent Engineer"> - Dan got into programming after he accidentally discovered Visual Basic inside Microsoft PowerPoint. He has found his true calling in turning [Sebastian](#sebastian-markbåge)'s tweets into long-form blog posts. Dan occasionally wins at Fortnite by hiding in a bush until the game ends. +<TeamMember name="Jack Pope" permalink="jack-pope" photo="/images/team/jack-pope.jpg" github="jackpope" personal="jackpope.me" title="Engineer at Meta" group="DOM*, Fiber"> + Shortly after being introduced to AutoHotkey, Jack had written scripts to automate everything he could think of. When reaching limitations there, he dove headfirst into web app development and hasn't looked back. Most recently, Jack worked on the web platform at Instagram before moving to React. His favorite programming language is JSX. </TeamMember> -<TeamMember name="Eli White" permalink="eli-white" photo="/images/team/eli-white.jpg" github="elicwhite" twitter="Eli_White" threads="elicwhite" title="Engineering Manager at Meta"> - Eli got into programming after he got suspended from middle school for hacking. He has been working on React and React Native since 2017. He enjoys eating treats, especially ice cream and apple pie. You can find Eli trying quirky activities like parkour, indoor skydiving, and aerial silks. +<TeamMember name="Mofei Zhang" permalink="mofei-zhang" photo="/images/team/mofei-zhang.png" github="mofeiZ" threads="z_mofei" title="Engineer at Meta" group="Compiler*"> + Mofei started programming when she realized it can help her cheat in video games. She focused on operating systems in undergrad / grad school, but now finds herself happily tinkering on React. Outside of work, she enjoys debugging bouldering problems and planning her next backpacking trip(s). </TeamMember> -<TeamMember name="Hendrik Liebau" permalink="hendrik-liebau" photo="/images/team/hendrik.jpg" github="unstubbable" bsky="unstubbable.bsky.social" twitter="unstubbable" title="Engineer at Vercel"> - Hendrik’s journey in tech started in the late 90s when he built his first websites with Netscape Communicator. After earning a diploma in computer science and working at digital agencies, he built a React Server Components bundler and library, paving the way to his role on the Next.js team. Outside of work, he enjoys cycling and tinkering in his workshop. -</TeamMember> +<TeamMember name="Moti Zilberman" permalink="moti-zilberman" photo="/images/team/gh-motiz88.jpg" github="motiz88" title="Engineer at Meta" group="DevX*" /> -<TeamMember name="Jack Pope" permalink="jack-pope" photo="/images/team/jack-pope.jpg" github="jackpope" personal="jackpope.me" title="Engineer at Meta"> - Shortly after being introduced to AutoHotkey, Jack had written scripts to automate everything he could think of. When reaching limitations there, he dove headfirst into web app development and hasn't looked back. Most recently, Jack worked on the web platform at Instagram before moving to React. His favorite programming language is JSX. +<TeamMember name="Nicola Corti" permalink="nicola-corti" photo="/images/team/gh-cortinico.jpg" github="cortinico" title="Engineer at Meta" group="React Native*, Docs & Community" /> + +<TeamMember name="Rick Hanlon" permalink="rick-hanlon" photo="/images/team/rickhanlonii.jpg" github="rickhanlonii" twitter="rickyfm" threads="rickhanlonii" bsky="ricky.fm" title="Engineer at Meta" group="Docs & Community*, DOM, Fiber, Server, DevX"> + Ricky majored in theoretical math and somehow found himself on the React Native team for a couple years before joining the React team. When he's not programming you can find him snowboarding, biking, climbing, golfing, or closing GitHub issues that do not match the issue template. </TeamMember> -<TeamMember name="Jason Bonta" permalink="jason-bonta" photo="/images/team/jasonbonta.jpg" threads="someextent" title="Engineering Manager at Meta"> - Jason abandoned embedded C for a career in front-end engineering and never looked back. Armed with esoteric CSS knowledge and a passion for beautiful UI, Jason joined Facebook in 2010, where he now feels privileged to have seen JavaScript development come of age. Though he may not understand how `for...of` loops work, he loves getting to work with brilliant people on projects that enable amazing UX. +<TeamMember name="Sebastian Silbermann" permalink="sebastian-silbermann" photo="/images/team/sebsilbermann.jpg" github="eps1lon" twitter="sebsilbermann" threads="sebsilbermann" title="Engineer at Vercel" group="Server*, DOM, Fiber, DevX"> + Sebastian learned programming to make the browser games he played during class more enjoyable. Eventually this lead to contributing to as much open source code as possible. Outside of coding he's busy making sure people don't confuse him with the other Sebastians and Zilberman of the React community. </TeamMember> -<TeamMember name="Joe Savona" permalink="joe-savona" photo="/images/team/joe.jpg" github="josephsavona" twitter="en_JS" threads="joesavona" title="Engineer at Meta"> - Joe was planning to major in math and philosophy but got into computer science after writing physics simulations in Matlab. Prior to React, he worked on Relay, RSocket.js, and the Skip programming language. While he’s not building some sort of reactive system he enjoys running, studying Japanese, and spending time with his family. +## Working Group members {/*working-group-members*/} + +<TeamMember name="Alex Hunt" permalink="alex-hunt" photo="/images/team/gh-huntie.jpg" github="huntie" title="Engineer at Meta" group="DevX, React Native" /> + +<TeamMember name="Aurora Scharff" permalink="aurora-scharff" photo="/images/team/gh-aurorascharff.jpg" github="aurorascharff" title="Engineer at Vercel" group="Docs & Community" /> + +<TeamMember name="Brent Vatne" permalink="brent-vatne" photo="/images/team/gh-brentvatne.jpg" github="brentvatne" title="Engineer at Expo" group="React Native" /> + +<TeamMember name="Dan Abramov" permalink="dan-abramov" photo="/images/team/gaearon.jpg" github="gaearon" bsky="danabra.mov" title="Engineer at Vercel" group="Docs & Community"> + Dan got into programming after he accidentally discovered Visual Basic inside Microsoft PowerPoint. He has found his true calling in turning [Sebastian](#sebastian-markbåge)'s tweets into long-form blog posts. Dan occasionally wins at Fortnite by hiding in a bush until the game ends. </TeamMember> -<TeamMember name="Jordan Brown" permalink="jordan-brown" photo="/images/team/jordan.jpg" github="jbrown215" title="Engineer at Meta"> - Jordan started coding by building iPhone apps, where he was pushing and popping view controllers before he knew that for-loops were a thing. He enjoys working on technology that developers love, which naturally drew him to React. Outside of work he enjoys reading, kiteboarding, and playing guitar. +<TeamMember name="Hendrik Liebau" permalink="hendrik-liebau" photo="/images/team/hendrik.jpg" github="unstubbable" bsky="unstubbable.bsky.social" twitter="unstubbable" title="Engineer at Vercel" group="Server"> + Hendrik’s journey in tech started in the late 90s when he built his first websites with Netscape Communicator. After earning a diploma in computer science and working at digital agencies, he built a React Server Components bundler and library, paving the way to his role on the Next.js team. Outside of work, he enjoys cycling and tinkering in his workshop. </TeamMember> -<TeamMember name="Josh Story" permalink="josh-story" photo="/images/team/josh.jpg" github="gnoff" bsky="storyhb.com" title="Engineer at Vercel"> +<TeamMember name="Jordan Eldredge" permalink="jordan-eldredge" photo="/images/team/gh-captbaritone.jpg" github="captbaritone" title="Engineer at Meta" group="Server" /> + +<TeamMember name="Josh Story" permalink="josh-story" photo="/images/team/josh.jpg" github="gnoff" bsky="storyhb.com" title="Engineer at Vercel" group="DOM, Fiber, Server"> Josh majored in Mathematics and discovered programming while in college. His first professional developer job was to program insurance rate calculations in Microsoft Excel, the paragon of Reactive Programming which must be why he now works on React. In between that time Josh has been an IC, Manager, and Executive at a few startups. outside of work he likes to push his limits with cooking. </TeamMember> -<TeamMember name="Lauren Tan" permalink="lauren-tan" photo="/images/team/lauren.jpg" github="poteto" twitter="potetotes" threads="potetotes" bsky="no.lol" title="Engineer at Meta"> +<TeamMember name="Kevin Gozali" permalink="kevin-gozali" photo="/images/team/gh-fkgozali.jpg" github="fkgozali" title="Engineer at Meta" group="React Native" /> + +<TeamMember name="Khalef Hosany" permalink="khalef-hosany" photo="/images/team/gh-khalef1.jpg" github="Khalef1" title="Engineer at Microsoft" group="React Native" /> + +<TeamMember name="Krzysztof Magiera" permalink="krzysztof-magiera" photo="/images/team/gh-kmagiera.jpg" github="kmagiera" title="Engineer at Software Mansion" group="React Native" /> + +<TeamMember name="Lauren Tan" permalink="lauren-tan" photo="/images/team/lauren.jpg" github="poteto" twitter="potetotes" threads="potetotes" bsky="no.lol" title="Engineer at Cursor" group="Compiler"> Lauren's programming career peaked when she first discovered the `<marquee>` tag. She’s been chasing that high ever since. She studied Finance instead of CS in college, so she learned to code using Excel. Lauren enjoys dropping cheeky memes in chat, playing video games with her partner, learning Korean, and petting her dog Zelda. </TeamMember> -<TeamMember name="Matt Carroll" permalink="matt-carroll" photo="/images/team/matt-carroll.png" github="mattcarrollcode" twitter="mattcarrollcode" threads="mattcarrollcode" title="Developer Advocate at Meta"> +<TeamMember name="Matt Carroll" permalink="matt-carroll" photo="/images/team/matt-carroll.png" github="mattcarrollcode" twitter="mattcarrollcode" threads="mattcarrollcode" title="Developer Advocate at Meta" group="Docs & Community"> Matt stumbled into coding, and since then, has become enamored with creating things in communities that can’t be created alone. Prior to React, he worked on YouTube, the Google Assistant, Fuchsia, and Google Cloud AI and Evernote. When he's not trying to make better developer tools he enjoys the mountains, jazz, and spending time with his family. </TeamMember> -<TeamMember name="Mike Vitousek" permalink="mike-vitousek" photo="/images/team/mike.jpg" github="mvitousek" title="Engineer at Meta"> +<TeamMember name="Michael Leon" permalink="michael-leon" photo="/images/team/gh-fbmal7.jpg" github="fbmal7" title="Engineer at Meta" group="DevX" /> + +<TeamMember name="Michał Pierzchała" permalink="michal-pierzchala" photo="/images/team/gh-thymikee.jpg" github="thymikee" title="Engineer at Callstack" group="React Native" /> + +<TeamMember name="Mike Vitousek" permalink="mike-vitousek" photo="/images/team/mike.jpg" github="mvitousek" title="Engineer at Meta" group="Compiler"> Mike went to grad school dreaming of becoming a professor but realized that he liked building things a lot more than writing grant applications. Mike joined Meta to work on Javascript infrastructure, which ultimately led him to work on the React Compiler. When not hacking on either Javascript or OCaml, Mike can often be found hiking or skiing in the Pacific Northwest. </TeamMember> -<TeamMember name="Mofei Zhang" permalink="mofei-zhang" photo="/images/team/mofei-zhang.png" github="mofeiZ" threads="z_mofei" title="Engineer at Meta"> - Mofei started programming when she realized it can help her cheat in video games. She focused on operating systems in undergrad / grad school, but now finds herself happily tinkering on React. Outside of work, she enjoys debugging bouldering problems and planning her next backpacking trip(s). -</TeamMember> +<TeamMember name="Pieter De Baets" permalink="pieter-de-baets" photo="/images/team/gh-javache.jpg" github="javache" title="Engineer at Meta" group="Compiler, Fiber, React Native" /> -<TeamMember name="Pieter Vanderwerff" permalink="pieter-vanderwerff" photo="/images/team/pieter.jpg" github="pieterv" threads="pietervanderwerff" title="Engineer at Meta"> - Pieter studied building science but after failing to get a job he made himself a website and things escalated from there. At Meta, he enjoys working on performance, languages and now React. When he's not programming you can find him off-road in the mountains. +<TeamMember name="Riccardo Cipolleschi" permalink="riccardo-cipolleschi" photo="/images/team/gh-cipolleschi.png" github="cipolleschi" title="Engineer at Meta" group="Docs & Community, React Native" /> + +<TeamMember name="Rob Hogan" permalink="rob-hogan" photo="/images/team/gh-rh389.jpg" github="rh389" title="Engineer at Meta" group="DevX" /> + +<TeamMember name="Rubén Norte" permalink="ruben-norte" photo="/images/team/gh-rubennorte.jpg" github="rubennorte" title="Engineer at Meta" group="Fiber" /> + +<TeamMember name="Ruslan Lesiutin" permalink="ruslan-lesiutin" photo="/images/team/lesiutin.jpg" github="hoxyq" twitter="ruslanlesiutin" threads="lesiutin" title="Engineer at Meta" group="DOM, DevX"> + Ruslan's introduction to UI programming started when he was a kid by manually editing HTML templates for his custom gaming forums. Somehow, he ended up majoring in Computer Science. He enjoys music, games, and memes. Mostly memes. </TeamMember> -<TeamMember name="Rick Hanlon" permalink="rick-hanlon" photo="/images/team/rickhanlonii.jpg" github="rickhanlonii" twitter="rickhanlonii" threads="rickhanlonii" bsky="ricky.fm" title="Engineer at Meta"> - Ricky majored in theoretical math and somehow found himself on the React Native team for a couple years before joining the React team. When he's not programming you can find him snowboarding, biking, climbing, golfing, or closing GitHub issues that do not match the issue template. +<TeamMember name="Sam Selikoff" permalink="sam-selikoff" photo="/images/team/gh-samselikoff.jpg" github="samselikoff" title="Engineer at Vercel" group="Docs & Community" /> + +<TeamMember name="Sophie Alpert" permalink="sophie-alpert" photo="/images/team/sophiebits.jpg" github="sophiebits" twitter="sophiebits" threads="sophiebits" personal="sophiebits.com" title="Independent Engineer" group="Docs & Community, DOM, Fiber"> + Four days after React was released, Sophie rewrote the entirety of her then-current project to use it, which she now realizes was perhaps a bit reckless. After she became the project's #1 committer, she wondered why she wasn't getting paid by Facebook like everyone else was and joined the team officially to lead React through its adolescent years. Though she quit that job years ago, somehow she's still in the team's group chats and “providing value”. </TeamMember> -<TeamMember name="Ruslan Lesiutin" permalink="ruslan-lesiutin" photo="/images/team/lesiutin.jpg" github="hoxyq" twitter="ruslanlesiutin" threads="lesiutin" title="Engineer at Meta"> - Ruslan's introduction to UI programming started when he was a kid by manually editing HTML templates for his custom gaming forums. Somehow, he ended up majoring in Computer Science. He enjoys music, games, and memes. Mostly memes. +<TeamMember name="Steven Moyes" permalink="steven-moyes" photo="/images/team/gh-stmoy.jpg" github="stmoy" title="Engineer at Amazon" group="React Native" /> + +<TeamMember name="Vitali Zaidman" permalink="vitali-zaidman" photo="/images/team/gh-vzaidman.jpg" github="vzaidman" title="Engineer at Meta" group="DevX" /> + +<TeamMember name="Vojtěch Šimek" permalink="vojtech-simek" photo="/images/team/gh-simek.png" github="simek" title="Developer" group="Docs & Community" /> + +## Advisors {/*advisors*/} + +<TeamMember name="Eli White" permalink="eli-white" photo="/images/team/eli-white.jpg" github="elicwhite" twitter="Eli_White" threads="elicwhite" title="Engineer at Meta"> + Eli got into programming after he got suspended from middle school for hacking. He has been working on React and React Native since 2017. He enjoys eating treats, especially ice cream and apple pie. You can find Eli trying quirky activities like parkour, indoor skydiving, and aerial silks. </TeamMember> -<TeamMember name="Sebastian Markbåge" permalink="sebastian-markbåge" photo="/images/team/sebmarkbage.jpg" github="sebmarkbage" twitter="sebmarkbage" threads="sebmarkbage" title="Engineer at Vercel"> - Sebastian majored in psychology. He's usually quiet. Even when he says something, it often doesn't make sense to the rest of us until a few months later. The correct way to pronounce his surname is "mark-boa-geh" but he settled for "mark-beige" out of pragmatism -- and that's how he approaches React. +<TeamMember name="Jason Bonta" permalink="jason-bonta" photo="/images/team/jasonbonta.jpg" threads="someextent" title="Engineering Manager at Meta"> + Jason abandoned embedded C for a career in front-end engineering and never looked back. Armed with esoteric CSS knowledge and a passion for beautiful UI, Jason joined Facebook in 2010, where he now feels privileged to have seen JavaScript development come of age. Though he may not understand how `for...of` loops work, he loves getting to work with brilliant people on projects that enable amazing UX. </TeamMember> -<TeamMember name="Sebastian Silbermann" permalink="sebastian-silbermann" photo="/images/team/sebsilbermann.jpg" github="eps1lon" twitter="sebsilbermann" threads="sebsilbermann" title="Engineer at Vercel"> - Sebastian learned programming to make the browser games he played during class more enjoyable. Eventually this lead to contributing to as much open source code as possible. Outside of coding he's busy making sure people don't confuse him with the other Sebastians and Zilberman of the React community. +<TeamMember name="Jimmy Lai" permalink="jimmy-lai" photo="/images/team/jimmy-lai.jpg" github="feedthejim" title="Engineering Director, Next.js at Vercel"> + Like many others, Jimmy started programming with the hopes of being able to work in the gaming industry. Fast forward a few years, he somehow decided that React and Javascript were pretty fun and that helping other developers build fast experiences was a more interesting life goal. After starting his career at Meta, working on product infrastructure and (briefly) on React Native, Jimmy now works at Vercel, where he helps his team build Next.js. He sadly does not get much time for video games anymore. </TeamMember> -<TeamMember name="Seth Webster" permalink="seth-webster" photo="/images/team/seth.jpg" github="sethwebster" twitter="sethwebster" threads="sethwebster" personal="sethwebster.com" title="Engineering Manager at Meta"> +<TeamMember name="Seth Webster" permalink="seth-webster" photo="/images/team/seth.jpg" github="sethwebster" twitter="sethwebster" threads="sethwebster" personal="sethwebster.com" title="Executive Director, React Foundation, Chief Developer Evangelist at Expo"> Seth started programming as a kid growing up in Tucson, AZ. After school, he was bitten by the music bug and was a touring musician for about 10 years before returning to *work*, starting with Intuit. In his spare time, he loves [taking pictures](https://www.sethwebster.com) and flying for animal rescues in the northeastern United States. </TeamMember> -<TeamMember name="Sophie Alpert" permalink="sophie-alpert" photo="/images/team/sophiebits.jpg" github="sophiebits" twitter="sophiebits" threads="sophiebits" personal="sophiebits.com" title="Independent Engineer"> - Four days after React was released, Sophie rewrote the entirety of her then-current project to use it, which she now realizes was perhaps a bit reckless. After she became the project's #1 committer, she wondered why she wasn't getting paid by Facebook like everyone else was and joined the team officially to lead React through its adolescent years. Though she quit that job years ago, somehow she's still in the team's group chats and “providing value”. +## Emeritus {/*emeritus*/} + +<TeamMember name="Joe Savona" permalink="joe-savona" photo="/images/team/joe.jpg" github="josephsavona" twitter="en_JS" threads="joesavona" title="Engineer at Meta"> + Joe was planning to major in math and philosophy but got into computer science after writing physics simulations in Matlab. Prior to React, he worked on Relay, RSocket.js, and the Skip programming language. While he’s not building some sort of reactive system he enjoys running, studying Japanese, and spending time with his family. +</TeamMember> + +<TeamMember name="Jordan Brown" permalink="jordan-brown" photo="/images/team/jordan.jpg" github="jbrown215" title="Engineer at Meta"> + Jordan started coding by building iPhone apps, where he was pushing and popping view controllers before he knew that for-loops were a thing. He enjoys working on technology that developers love, which naturally drew him to React. Outside of work he enjoys reading, kiteboarding, and playing guitar. +</TeamMember> + +<TeamMember name="Pieter Vanderwerff" permalink="pieter-vanderwerff" photo="/images/team/pieter.jpg" github="pieterv" threads="pietervanderwerff" title="Engineer at Meta"> + Pieter studied building science but after failing to get a job he made himself a website and things escalated from there. At Meta, he enjoys working on performance, languages and now React. When he's not programming you can find him off-road in the mountains. +</TeamMember> + +<TeamMember name="Sebastian Markbåge" permalink="sebastian-markbåge" photo="/images/team/sebmarkbage.jpg" github="sebmarkbage" twitter="sebmarkbage" threads="sebmarkbage" title="Engineer at Vercel"> + Sebastian majored in psychology. He's usually quiet. Even when he says something, it often doesn't make sense to the rest of us until a few months later. The correct way to pronounce his surname is "mark-boa-geh" but he settled for "mark-beige" out of pragmatism -- and that's how he approaches React. </TeamMember> <TeamMember name="Yuzhi Zheng" permalink="yuzhi-zheng" photo="/images/team/yuzhi.jpg" github="yuzhi" twitter="yuzhiz" threads="yuzhiz" title="Engineering Manager at Meta"> Yuzhi studied Computer Science in school. She liked the instant gratification of seeing code come to life without having to physically be in a laboratory. Now she’s a manager in the React org. Before management, she used to work on the Relay data fetching framework. In her spare time, Yuzhi enjoys optimizing her life via gardening and home improvement projects. </TeamMember> -## Past contributors {/*past-contributors*/} - You can find the past team members and other people who significantly contributed to React over the years on the [acknowledgements](/community/acknowledgements) page. diff --git a/src/content/community/translations.md b/src/content/community/translations.md index 4c07e6a1e..fd49bd3e9 100644 --- a/src/content/community/translations.md +++ b/src/content/community/translations.md @@ -28,7 +28,7 @@ For the progress of each translation, see: [Is React Translated Yet?](https://tr ## How to contribute {/*how-to-contribute*/} -You can contribute to the translation efforts! +You can contribute to the translation efforts! The community conducts the translation work for the React docs on each language-specific fork of react.dev. Typical translation work involves directly translating a Markdown file and creating a pull request. Click the "contribute" link above to the GitHub repository for your language, and follow the instructions there to help with the translation effort. diff --git a/src/content/community/versioning-policy.md b/src/content/community/versioning-policy.md index a61d19942..2e3edb617 100644 --- a/src/content/community/versioning-policy.md +++ b/src/content/community/versioning-policy.md @@ -136,7 +136,7 @@ If you're the author of a third party React framework, library, developer tool, ``` - Run your test suite against the updated packages. - If everything passes, great! You can expect that your project will work with the next minor React release. -- If something breaks unexpectedly, please let us know by [filing an issue](https://github.com/facebook/react/issues). +- If something breaks unexpectedly, please let us know by [filing an issue](https://github.com/react/react/issues). A project that uses this workflow is Next.js. You can refer to their [CircleCI configuration](https://github.com/zeit/next.js/blob/c0a1c0f93966fe33edd93fb53e5fafb0dcd80a9e/.circleci/config.yml) as an example. @@ -166,4 +166,4 @@ If a feature is not documented, they may be accompanied by an [RFC](https://gith We will post to the [React blog](/blog) when we're ready to announce new experiments, but that doesn't mean we will publicize every experiment. -You can always refer to our public GitHub repository's [history](https://github.com/facebook/react/commits/main) for a comprehensive list of changes. +You can always refer to our public GitHub repository's [history](https://github.com/react/react/commits/main) for a comprehensive list of changes. diff --git a/src/content/learn/adding-interactivity.md b/src/content/learn/adding-interactivity.md index 5c87a3e79..0e84780fa 100644 --- a/src/content/learn/adding-interactivity.md +++ b/src/content/learn/adding-interactivity.md @@ -139,73 +139,73 @@ export const sculptureList = [{ name: 'Homenaje a la Neurocirugía', artist: 'Marta Colvin Andrade', description: 'Although Colvin is predominantly known for abstract themes that allude to pre-Hispanic symbols, this gigantic sculpture, an homage to neurosurgery, is one of her most recognizable public art pieces.', - url: 'https://i.imgur.com/Mx7dA2Y.jpg', + url: 'https://react.dev/images/docs/scientists/Mx7dA2Y.jpg', alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' }, { name: 'Floralis Genérica', artist: 'Eduardo Catalano', description: 'This enormous (75 ft. or 23m) silver flower is located in Buenos Aires. It is designed to move, closing its petals in the evening or when strong winds blow and opening them in the morning.', - url: 'https://i.imgur.com/ZF6s192m.jpg', + url: 'https://react.dev/images/docs/scientists/ZF6s192m.jpg', alt: 'A gigantic metallic flower sculpture with reflective mirror-like petals and strong stamens.' }, { name: 'Eternal Presence', artist: 'John Woodrow Wilson', description: 'Wilson was known for his preoccupation with equality, social justice, as well as the essential and spiritual qualities of humankind. This massive (7ft. or 2,13m) bronze represents what he described as "a symbolic Black presence infused with a sense of universal humanity."', - url: 'https://i.imgur.com/aTtVpES.jpg', + url: 'https://react.dev/images/docs/scientists/aTtVpES.jpg', alt: 'The sculpture depicting a human head seems ever-present and solemn. It radiates calm and serenity.' }, { name: 'Moai', artist: 'Unknown Artist', description: 'Located on the Easter Island, there are 1,000 moai, or extant monumental statues, created by the early Rapa Nui people, which some believe represented deified ancestors.', - url: 'https://i.imgur.com/RCwLEoQm.jpg', + url: 'https://react.dev/images/docs/scientists/RCwLEoQm.jpg', alt: 'Three monumental stone busts with the heads that are disproportionately large with somber faces.' }, { name: 'Blue Nana', artist: 'Niki de Saint Phalle', description: 'The Nanas are triumphant creatures, symbols of femininity and maternity. Initially, Saint Phalle used fabric and found objects for the Nanas, and later on introduced polyester to achieve a more vibrant effect.', - url: 'https://i.imgur.com/Sd1AgUOm.jpg', + url: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', alt: 'A large mosaic sculpture of a whimsical dancing female figure in a colorful costume emanating joy.' }, { name: 'Ultimate Form', artist: 'Barbara Hepworth', description: 'This abstract bronze sculpture is a part of The Family of Man series located at Yorkshire Sculpture Park. Hepworth chose not to create literal representations of the world but developed abstract forms inspired by people and landscapes.', - url: 'https://i.imgur.com/2heNQDcm.jpg', + url: 'https://react.dev/images/docs/scientists/2heNQDcm.jpg', alt: 'A tall sculpture made of three elements stacked on each other reminding of a human figure.' }, { name: 'Cavaliere', artist: 'Lamidi Olonade Fakeye', description: "Descended from four generations of woodcarvers, Fakeye's work blended traditional and contemporary Yoruba themes.", - url: 'https://i.imgur.com/wIdGuZwm.png', + url: 'https://react.dev/images/docs/scientists/wIdGuZwm.png', alt: 'An intricate wood sculpture of a warrior with a focused face on a horse adorned with patterns.' }, { name: 'Big Bellies', artist: 'Alina Szapocznikow', description: "Szapocznikow is known for her sculptures of the fragmented body as a metaphor for the fragility and impermanence of youth and beauty. This sculpture depicts two very realistic large bellies stacked on top of each other, each around five feet (1,5m) tall.", - url: 'https://i.imgur.com/AlHTAdDm.jpg', + url: 'https://react.dev/images/docs/scientists/AlHTAdDm.jpg', alt: 'The sculpture reminds a cascade of folds, quite different from bellies in classical sculptures.' }, { name: 'Terracotta Army', artist: 'Unknown Artist', description: 'The Terracotta Army is a collection of terracotta sculptures depicting the armies of Qin Shi Huang, the first Emperor of China. The army consisted of more than 8,000 soldiers, 130 chariots with 520 horses, and 150 cavalry horses.', - url: 'https://i.imgur.com/HMFmH6m.jpg', + url: 'https://react.dev/images/docs/scientists/HMFmH6m.jpg', alt: '12 terracotta sculptures of solemn warriors, each with a unique facial expression and armor.' }, { name: 'Lunar Landscape', artist: 'Louise Nevelson', description: 'Nevelson was known for scavenging objects from New York City debris, which she would later assemble into monumental constructions. In this one, she used disparate parts like a bedpost, juggling pin, and seat fragment, nailing and gluing them into boxes that reflect the influence of Cubism’s geometric abstraction of space and form.', - url: 'https://i.imgur.com/rN7hY6om.jpg', + url: 'https://react.dev/images/docs/scientists/rN7hY6om.jpg', alt: 'A black matte sculpture where the individual elements are initially indistinguishable.' }, { name: 'Aureole', artist: 'Ranjani Shettar', description: 'Shettar merges the traditional and the modern, the natural and the industrial. Her art focuses on the relationship between man and nature. Her work was described as compelling both abstractly and figuratively, gravity defying, and a "fine synthesis of unlikely materials."', - url: 'https://i.imgur.com/okTpbHhm.jpg', + url: 'https://react.dev/images/docs/scientists/okTpbHhm.jpg', alt: 'A pale wire-like sculpture mounted on concrete wall and descending on the floor. It appears light.' }, { name: 'Hippos', artist: 'Taipei Zoo', description: 'The Taipei Zoo commissioned a Hippo Square featuring submerged hippos at play.', - url: 'https://i.imgur.com/6o5Vuyu.jpg', + url: 'https://react.dev/images/docs/scientists/6o5Vuyu.jpg', alt: 'A group of bronze hippo sculptures emerging from the sett sidewalk as if they were swimming.' }]; ``` @@ -423,7 +423,7 @@ export default function Form() { artwork: { title: 'Blue Nana', city: 'Hamburg', - image: 'https://i.imgur.com/Sd1AgUOm.jpg', + image: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', } }); @@ -531,7 +531,7 @@ export default function Form() { artwork: { title: 'Blue Nana', city: 'Hamburg', - image: 'https://i.imgur.com/Sd1AgUOm.jpg', + image: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', } }); diff --git a/src/content/learn/build-a-react-app-from-scratch.md b/src/content/learn/build-a-react-app-from-scratch.md index 8a2142cf9..182ad54bb 100644 --- a/src/content/learn/build-a-react-app-from-scratch.md +++ b/src/content/learn/build-a-react-app-from-scratch.md @@ -12,7 +12,7 @@ If your app has constraints not well-served by existing frameworks, you prefer t #### Consider using a framework {/*consider-using-a-framework*/} -Starting from scratch is an easy way to get started using React, but a major tradeoff to be aware of is that going this route is often the same as building your own adhoc framework. As your requirements evolve, you may need to solve more framework-like problems that our recommended frameworks already have well developed and supported solutions for. +Starting from scratch is an easy way to get started using React, but a major tradeoff to be aware of is that going this route is often the same as building your own adhoc framework. As your requirements evolve, you may need to solve more framework-like problems that our recommended frameworks already have well developed and supported solutions for. For example, if in the future your app needs support for server-side rendering (SSR), static site generation (SSG), and/or React Server Components (RSC), you will have to implement those on your own. Similarly, future React features that require integrating at the framework level will have to be implemented on your own if you want to use them. @@ -132,12 +132,12 @@ Since the build tool you select only supports single page apps (SPAs), you'll ne * **React Server Components (RSC)** lets you mix build-time, server-only, and interactive components in a single React tree. RSC can improve performance, but it currently requires deep expertise to set up and maintain. See [Parcel's RSC examples](https://github.com/parcel-bundler/rsc-examples). -Your rendering strategies need to integrate with your router so apps built with your framework can choose the rendering strategy on a per-route level. This will enable different rendering strategies without having to rewrite your whole app. For example, the landing page for your app might benefit from being statically generated (SSG), while a page with a content feed might perform best with server-side rendering. +Your rendering strategies need to integrate with your router so apps built with your framework can choose the rendering strategy on a per-route level. This will enable different rendering strategies without having to rewrite your whole app. For example, the landing page for your app might benefit from being statically generated (SSG), while a page with a content feed might perform best with server-side rendering. Using the right rendering strategy for the right routes can decrease the time it takes for the first byte of content to be loaded ([Time to First Byte](https://web.dev/articles/ttfb)), the first piece of content to render ([First Contentful Paint](https://web.dev/articles/fcp)), and the largest visible content of the app to render ([Largest Contentful Paint](https://web.dev/articles/lcp)). ### And more... {/*and-more*/} -These are just a few examples of the features a new app will need to consider when building from scratch. Many limitations you'll hit can be difficult to solve as each problem is interconnected with the others and can require deep expertise in problem areas you may not be familiar with. +These are just a few examples of the features a new app will need to consider when building from scratch. Many limitations you'll hit can be difficult to solve as each problem is interconnected with the others and can require deep expertise in problem areas you may not be familiar with. -If you don't want to solve these problems on your own, you can [get started with a framework](/learn/creating-a-react-app) that provides these features out of the box. +If you don't want to solve these problems on your own, you can [get started with a framework](/learn/creating-a-react-app) that provides these features out of the box. diff --git a/src/content/learn/choosing-the-state-structure.md b/src/content/learn/choosing-the-state-structure.md index f6ed669ab..2533a53d8 100644 --- a/src/content/learn/choosing-the-state-structure.md +++ b/src/content/learn/choosing-the-state-structure.md @@ -458,7 +458,7 @@ export default function Menu() { return ( <> - <h2>What's your travel snack?</h2> + <h2>What's your travel snack?</h2> <ul> {items.map((item, index) => ( <li key={item.id}> @@ -804,7 +804,7 @@ export const initialTravelPlan = { }, { id: 48, title: 'Green Hill', - childPlaces: [] + childPlaces: [] }] }] }; @@ -882,7 +882,7 @@ export const initialTravelPlan = { id: 2, title: 'Africa', childIds: [3, 4, 5, 6 , 7, 8, 9] - }, + }, 3: { id: 3, title: 'Botswana', @@ -902,7 +902,7 @@ export const initialTravelPlan = { id: 6, title: 'Madagascar', childIds: [] - }, + }, 7: { id: 7, title: 'Morocco', @@ -921,7 +921,7 @@ export const initialTravelPlan = { 10: { id: 10, title: 'Americas', - childIds: [11, 12, 13, 14, 15, 16, 17, 18], + childIds: [11, 12, 13, 14, 15, 16, 17, 18], }, 11: { id: 11, @@ -937,7 +937,7 @@ export const initialTravelPlan = { id: 13, title: 'Barbados', childIds: [] - }, + }, 14: { id: 14, title: 'Canada', @@ -966,7 +966,7 @@ export const initialTravelPlan = { 19: { id: 19, title: 'Asia', - childIds: [20, 21, 22, 23, 24, 25], + childIds: [20, 21, 22, 23, 24, 25], }, 20: { id: 20, @@ -1001,7 +1001,7 @@ export const initialTravelPlan = { 26: { id: 26, title: 'Europe', - childIds: [27, 28, 29, 30, 31, 32, 33], + childIds: [27, 28, 29, 30, 31, 32, 33], }, 27: { id: 27, @@ -1041,7 +1041,7 @@ export const initialTravelPlan = { 34: { id: 34, title: 'Oceania', - childIds: [35, 36, 37, 38, 39, 40, 41], + childIds: [35, 36, 37, 38, 39, 40, 41], }, 35: { id: 35, @@ -1218,7 +1218,7 @@ export const initialTravelPlan = { id: 2, title: 'Africa', childIds: [3, 4, 5, 6 , 7, 8, 9] - }, + }, 3: { id: 3, title: 'Botswana', @@ -1238,7 +1238,7 @@ export const initialTravelPlan = { id: 6, title: 'Madagascar', childIds: [] - }, + }, 7: { id: 7, title: 'Morocco', @@ -1257,7 +1257,7 @@ export const initialTravelPlan = { 10: { id: 10, title: 'Americas', - childIds: [11, 12, 13, 14, 15, 16, 17, 18], + childIds: [11, 12, 13, 14, 15, 16, 17, 18], }, 11: { id: 11, @@ -1273,7 +1273,7 @@ export const initialTravelPlan = { id: 13, title: 'Barbados', childIds: [] - }, + }, 14: { id: 14, title: 'Canada', @@ -1302,7 +1302,7 @@ export const initialTravelPlan = { 19: { id: 19, title: 'Asia', - childIds: [20, 21, 22, 23, 24, 25], + childIds: [20, 21, 22, 23, 24, 25], }, 20: { id: 20, @@ -1337,7 +1337,7 @@ export const initialTravelPlan = { 26: { id: 26, title: 'Europe', - childIds: [27, 28, 29, 30, 31, 32, 33], + childIds: [27, 28, 29, 30, 31, 32, 33], }, 27: { id: 27, @@ -1377,7 +1377,7 @@ export const initialTravelPlan = { 34: { id: 34, title: 'Oceania', - childIds: [35, 36, 37, 38, 39, 40, 41], + childIds: [35, 36, 37, 38, 39, 40, 41], }, 35: { id: 35, @@ -1557,7 +1557,7 @@ export const initialTravelPlan = { id: 2, title: 'Africa', childIds: [3, 4, 5, 6 , 7, 8, 9] - }, + }, 3: { id: 3, title: 'Botswana', @@ -1577,7 +1577,7 @@ export const initialTravelPlan = { id: 6, title: 'Madagascar', childIds: [] - }, + }, 7: { id: 7, title: 'Morocco', @@ -1596,7 +1596,7 @@ export const initialTravelPlan = { 10: { id: 10, title: 'Americas', - childIds: [11, 12, 13, 14, 15, 16, 17, 18], + childIds: [11, 12, 13, 14, 15, 16, 17, 18], }, 11: { id: 11, @@ -1612,7 +1612,7 @@ export const initialTravelPlan = { id: 13, title: 'Barbados', childIds: [] - }, + }, 14: { id: 14, title: 'Canada', @@ -1641,7 +1641,7 @@ export const initialTravelPlan = { 19: { id: 19, title: 'Asia', - childIds: [20, 21, 22, 23, 24, 25,], + childIds: [20, 21, 22, 23, 24, 25,], }, 20: { id: 20, @@ -1676,7 +1676,7 @@ export const initialTravelPlan = { 26: { id: 26, title: 'Europe', - childIds: [27, 28, 29, 30, 31, 32, 33], + childIds: [27, 28, 29, 30, 31, 32, 33], }, 27: { id: 27, @@ -1716,7 +1716,7 @@ export const initialTravelPlan = { 34: { id: 34, title: 'Oceania', - childIds: [35, 36, 37, 38, 39, 40, 41], + childIds: [35, 36, 37, 38, 39, 40, 41], }, 35: { id: 35, @@ -1821,7 +1821,7 @@ Sometimes, you can also reduce state nesting by moving some of the nested state <Recap> -* If two state variables always update together, consider merging them into one. +* If two state variables always update together, consider merging them into one. * Choose your state variables carefully to avoid creating "impossible" states. * Structure your state in a way that reduces the chances that you'll make a mistake updating it. * Avoid redundant and duplicate state so that you don't need to keep it in sync. @@ -2060,7 +2060,7 @@ export default function TravelPlan() { } return ( - <> + <> <AddItem onAddItem={handleAddItem} /> @@ -2195,7 +2195,7 @@ export default function TravelPlan() { } return ( - <> + <> <AddItem onAddItem={handleAddItem} /> @@ -2348,7 +2348,7 @@ export default function Letter({ isHighlighted ? 'highlighted' : '' } onFocus={() => { - onHover(letter); + onHover(letter); }} onPointerMove={() => { onHover(letter); @@ -2457,7 +2457,7 @@ export default function Letter({ isHighlighted ? 'highlighted' : '' } onFocus={() => { - onHover(letter.id); + onHover(letter.id); }} onPointerMove={() => { onHover(letter.id); diff --git a/src/content/learn/conditional-rendering.md b/src/content/learn/conditional-rendering.md index 95be5d2e0..7a75fe021 100644 --- a/src/content/learn/conditional-rendering.md +++ b/src/content/learn/conditional-rendering.md @@ -32,17 +32,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - isPacked={true} - name="Space suit" + <Item + isPacked={true} + name="Space suit" /> - <Item - isPacked={true} - name="Helmet with a golden leaf" + <Item + isPacked={true} + name="Helmet with a golden leaf" /> - <Item - isPacked={false} - name="Photo of Tam" + <Item + isPacked={false} + name="Photo of Tam" /> </ul> </section> @@ -80,17 +80,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - isPacked={true} - name="Space suit" + <Item + isPacked={true} + name="Space suit" /> - <Item - isPacked={true} - name="Helmet with a golden leaf" + <Item + isPacked={true} + name="Helmet with a golden leaf" /> - <Item - isPacked={false} - name="Photo of Tam" + <Item + isPacked={false} + name="Photo of Tam" /> </ul> </section> @@ -132,17 +132,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - isPacked={true} - name="Space suit" + <Item + isPacked={true} + name="Space suit" /> - <Item - isPacked={true} - name="Helmet with a golden leaf" + <Item + isPacked={true} + name="Helmet with a golden leaf" /> - <Item - isPacked={false} - name="Photo of Tam" + <Item + isPacked={false} + name="Photo of Tam" /> </ul> </section> @@ -236,17 +236,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - isPacked={true} - name="Space suit" + <Item + isPacked={true} + name="Space suit" /> - <Item - isPacked={true} - name="Helmet with a golden leaf" + <Item + isPacked={true} + name="Helmet with a golden leaf" /> - <Item - isPacked={false} - name="Photo of Tam" + <Item + isPacked={false} + name="Photo of Tam" /> </ul> </section> @@ -290,17 +290,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - isPacked={true} - name="Space suit" + <Item + isPacked={true} + name="Space suit" /> - <Item - isPacked={true} - name="Helmet with a golden leaf" + <Item + isPacked={true} + name="Helmet with a golden leaf" /> - <Item - isPacked={false} - name="Photo of Tam" + <Item + isPacked={false} + name="Photo of Tam" /> </ul> </section> @@ -371,17 +371,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - isPacked={true} - name="Space suit" + <Item + isPacked={true} + name="Space suit" /> - <Item - isPacked={true} - name="Helmet with a golden leaf" + <Item + isPacked={true} + name="Helmet with a golden leaf" /> - <Item - isPacked={false} - name="Photo of Tam" + <Item + isPacked={false} + name="Photo of Tam" /> </ul> </section> @@ -417,17 +417,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - isPacked={true} - name="Space suit" + <Item + isPacked={true} + name="Space suit" /> - <Item - isPacked={true} - name="Helmet with a golden leaf" + <Item + isPacked={true} + name="Helmet with a golden leaf" /> - <Item - isPacked={false} - name="Photo of Tam" + <Item + isPacked={false} + name="Photo of Tam" /> </ul> </section> @@ -474,17 +474,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - isPacked={true} - name="Space suit" + <Item + isPacked={true} + name="Space suit" /> - <Item - isPacked={true} - name="Helmet with a golden leaf" + <Item + isPacked={true} + name="Helmet with a golden leaf" /> - <Item - isPacked={false} - name="Photo of Tam" + <Item + isPacked={false} + name="Photo of Tam" /> </ul> </section> @@ -512,17 +512,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - isPacked={true} - name="Space suit" + <Item + isPacked={true} + name="Space suit" /> - <Item - isPacked={true} - name="Helmet with a golden leaf" + <Item + isPacked={true} + name="Helmet with a golden leaf" /> - <Item - isPacked={false} - name="Photo of Tam" + <Item + isPacked={false} + name="Photo of Tam" /> </ul> </section> @@ -560,17 +560,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - importance={9} - name="Space suit" + <Item + importance={9} + name="Space suit" /> - <Item - importance={0} - name="Helmet with a golden leaf" + <Item + importance={0} + name="Helmet with a golden leaf" /> - <Item - importance={6} - name="Photo of Tam" + <Item + importance={6} + name="Photo of Tam" /> </ul> </section> @@ -604,17 +604,17 @@ export default function PackingList() { <section> <h1>Sally Ride's Packing List</h1> <ul> - <Item - importance={9} - name="Space suit" + <Item + importance={9} + name="Space suit" /> - <Item - importance={0} - name="Helmet with a golden leaf" + <Item + importance={0} + name="Helmet with a golden leaf" /> - <Item - importance={6} - name="Photo of Tam" + <Item + importance={6} + name="Photo of Tam" /> </ul> </section> diff --git a/src/content/learn/creating-a-react-app.md b/src/content/learn/creating-a-react-app.md index a65b59f6e..fef66838e 100644 --- a/src/content/learn/creating-a-react-app.md +++ b/src/content/learn/creating-a-react-app.md @@ -104,7 +104,7 @@ Server Components and Suspense are React features rather than Next.js features. If your app has constraints not well-served by existing frameworks, you prefer to build your own framework, or you just want to learn the basics of a React app, there are other options available for starting a React project from scratch. -Starting from scratch gives you more flexibility, but does require that you make choices on which tools to use for routing, data fetching, and other common usage patterns. It's a lot like building your own framework, instead of using a framework that already exists. The [frameworks we recommend](#full-stack-frameworks) have built-in solutions for these problems. +Starting from scratch gives you more flexibility, but does require that you make choices on which tools to use for routing, data fetching, and other common usage patterns. It's a lot like building your own framework, instead of using a framework that already exists. The [frameworks we recommend](#full-stack-frameworks) have built-in solutions for these problems. If you want to build your own solutions, see our guide to [build a React app from Scratch](/learn/build-a-react-app-from-scratch) for instructions on how to set up a new React project starting with a build tool like [Vite](https://vite.dev/), [Parcel](https://parceljs.org/), or [RSbuild](https://rsbuild.dev/). diff --git a/src/content/learn/describing-the-ui.md b/src/content/learn/describing-the-ui.md index 4ebfa3eb3..de30131fc 100644 --- a/src/content/learn/describing-the-ui.md +++ b/src/content/learn/describing-the-ui.md @@ -32,7 +32,7 @@ React অ্যাপ্লিকেশনগুলো UI এর পৃথক function Profile() { return ( <img - src="https://i.imgur.com/MK3eW3As.jpg" + src="https://react.dev/images/docs/scientists/MK3eW3As.jpg" alt="Katherine Johnson" /> ); @@ -98,7 +98,7 @@ export default function Gallery() { export default function Profile() { return ( <img - src="https://i.imgur.com/QIrZWGIs.jpg" + src="https://react.dev/images/docs/scientists/QIrZWGIs.jpg" alt="Alan L. Hart" /> ); @@ -131,7 +131,7 @@ export default function TodoList() { // This doesn't quite work! <h1>Hedy Lamarr's Todos</h1> <img - src="https://i.imgur.com/yXOvdOSs.jpg" + src="https://react.dev/images/docs/scientists/yXOvdOSs.jpg" alt="Hedy Lamarr" class="photo" > @@ -160,7 +160,7 @@ export default function TodoList() { <> <h1>Hedy Lamarr's Todos</h1> <img - src="https://i.imgur.com/yXOvdOSs.jpg" + src="https://react.dev/images/docs/scientists/yXOvdOSs.jpg" alt="Hedy Lamarr" className="photo" /> @@ -207,7 +207,7 @@ export default function TodoList() { <h1>{person.name}'s Todos</h1> <img className="avatar" - src="https://i.imgur.com/7vQD0fPs.jpg" + src="https://react.dev/images/docs/scientists/7vQD0fPs.jpg" alt="Gregorio Y. Zara" /> <ul> @@ -282,7 +282,7 @@ function Card({ children }) { ```js src/utils.js export function getImageUrl(person, size = 's') { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + size + '.jpg' @@ -435,7 +435,7 @@ export const people = [{ ```js src/utils.js export function getImageUrl(person) { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + 's.jpg' ); @@ -526,9 +526,15 @@ export default function TeaSet() { ## Tree হিসেবে আপনার UI {/*your-ui-as-a-tree*/} +<<<<<<< HEAD React কম্পোনেন্ট এবং মডিউলের ভেতরকার সম্পর্ক মডেল করবার জন্য tree ব্যবহার করে। একটা React রেন্ডার ট্রি হল কম্পোনেন্টের মাঝে থাকা প্যারেন্ট-চাইল্ড সম্পর্কের একটা প্রতিফলন। +======= +React uses trees to model the relationships between components and modules. + +A React render tree is a representation of the parent and child relationship between components. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca <Diagram name="generic_render_tree" height={250} width={500} alt="A tree graph with five nodes, with each node representing a component. The root node is located at the top the tree graph and is labelled 'Root Component'. It has two arrows extending down to two nodes labelled 'Component A' and 'Component C'. Each of the arrows is labelled with 'renders'. 'Component A' has a single 'renders' arrow to a node labelled 'Component B'. 'Component C' has a single 'renders' arrow to a node labelled 'Component D'."> @@ -538,7 +544,11 @@ React রেন্ডার ট্রিয়ের একটি উদাহর ট্রি এর শীর্ষের কাছে থাকা কম্পোনেন্ট, যেগুলো রুটেরও কাছে, সেগুলোকে top-level কম্পোনেন্ট হিসেবে ধরা হয়। যেসব কম্পোনেন্টের কোন চাইল্ড নেই সেগুলোকে leaf কম্পোনেন্ট বলে। দেটা ফলো এবং রেন্ডারিং পারফরম্যান্স বুঝবার জন্য কম্পোনেন্টের এই বিভাজন কাজে লাগে। +<<<<<<< HEAD জাভাস্ক্রিপ্ট মডিউলগুলোর মধ্যকার সম্পর্ক মডেলিং আপনার অ্যাপ বুঝবার জন্য অন্য একটি কার্যকর উপায়। এটাকে আমরা module dependency tree বলে অভিহিত করি। +======= +Modelling the relationship between JavaScript modules is another useful way to understand your app. We refer to it as a module dependency tree. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca <Diagram name="generic_dependency_tree" height={250} width={500} alt="A tree graph with five nodes. Each node represents a JavaScript module. The top-most node is labelled 'RootModule.js'. It has three arrows extending to the nodes: 'ModuleA.js', 'ModuleB.js', and 'ModuleC.js'. Each arrow is labelled as 'imports'. 'ModuleC.js' node has a single 'imports' arrow that points to a node labelled 'ModuleD.js'."> @@ -546,7 +556,11 @@ Module dependency tree এর একটি উদাহরণ। </Diagram> +<<<<<<< HEAD একটি ডিপেন্ডেন্সি ট্রি বেশিরভাগ সময় বিল্ড টুল ব্যবহার করে তৈরি করা হয়, যেন দরকারি পুরো জাভাস্ক্রিপ্ট কোড একত্রিত করে ক্লায়েন্ট ডাউনলোড এবং রেন্ডার করতে পারেন। React অ্যাপের ক্ষেত্রে একটা বড় বান্ডল সাইজ user experience এ বিঘ্ন ঘটায়। এরকম সমস্যা ডিবাগ করার জন্য মডিউল ডিপেন্ডেন্সি ট্রি কাজে লাগে। +======= +A dependency tree is often used by build tools to bundle all the relevant JavaScript code for the client to download and render. A large bundle size regresses user experience for React apps. Understanding the module dependency tree is helpful to debug such issues. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca <LearnMore path="/learn/understanding-your-ui-as-a-tree"> diff --git a/src/content/learn/editor-setup.md b/src/content/learn/editor-setup.md index fabba9941..d4eb87774 100644 --- a/src/content/learn/editor-setup.md +++ b/src/content/learn/editor-setup.md @@ -31,7 +31,11 @@ React কমিউনিটিতে ব্যবহৃত অন্য জন ### লিন্টিং {/*linting*/} +<<<<<<< HEAD কোড লিন্টার আপনি কোড লিখার সাথে সাথে আপনাকে বিভিন্ন সমস্যা ধরতে এবং তা তাড়াতাড়ি সমাধান করতে সাহায্য করে। [ESLint](https://eslint.org/) জাভাস্ক্রিপ্টের একটি জনপ্রিয়, ওপেন-সোর্স লিন্টার। +======= +Code linters find problems in your code as you write, helping you fix them early. [ESLint](https://eslint.org/) is a popular, open source linter for JavaScript. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca * [React এর জন্য প্রস্তাবিত কনফিগারেশন সহ ESLint ইন্সটল করুন](https://www.npmjs.com/package/eslint-config-react-app) (নিশ্চিত করুন আপনার [Node ইন্সটল করা রয়েছে!](https://nodejs.org/en/download/current/)) * [অফিশিয়াল এক্সটেনশনের সাহায্যে VSCode এ ESLint সংযুক্ত করুন](https://marketplace.visualstudio.com/items?itemName=dbaeumer.vscode-eslint) diff --git a/src/content/learn/escape-hatches.md b/src/content/learn/escape-hatches.md index c09d58d77..b13b7464d 100644 --- a/src/content/learn/escape-hatches.md +++ b/src/content/learn/escape-hatches.md @@ -227,7 +227,11 @@ function Form() { } ``` +<<<<<<< HEAD কিন্তু, বাইরের সিস্টেমের সাথে সিঙ্ক্রোনাইজ করতে আপনার Effect *লাগবেই*। +======= +However, you *do* need Effects to synchronize with external systems. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca <LearnMore path="/learn/you-might-not-need-an-effect"> @@ -382,7 +386,7 @@ export default function App() { <hr /> <ChatRoom roomId={roomId} - theme={isDark ? 'dark' : 'light'} + theme={isDark ? 'dark' : 'light'} /> </> ); @@ -515,7 +519,7 @@ export default function App() { <hr /> <ChatRoom roomId={roomId} - theme={isDark ? 'dark' : 'light'} + theme={isDark ? 'dark' : 'light'} /> </> ); diff --git a/src/content/learn/importing-and-exporting-components.md b/src/content/learn/importing-and-exporting-components.md index 4f47ea35d..13ec80654 100644 --- a/src/content/learn/importing-and-exporting-components.md +++ b/src/content/learn/importing-and-exporting-components.md @@ -28,7 +28,7 @@ title: কম্পোনেন্ট ইম্পোর্ট এবং এক function Profile() { return ( <img - src="https://i.imgur.com/MK3eW3As.jpg" + src="https://react.dev/images/docs/scientists/MK3eW3As.jpg" alt="Katherine Johnson" /> ); @@ -80,7 +80,7 @@ export default function App() { function Profile() { return ( <img - src="https://i.imgur.com/QIrZWGIs.jpg" + src="https://react.dev/images/docs/scientists/QIrZWGIs.jpg" alt="Alan L. Hart" /> ); @@ -118,7 +118,7 @@ img { margin: 0 10px 10px 0; height: 90px; } হয়তো আপনি এমন ইম্পোর্ট দেখেছেন যেখানে `.js` ফাইল এক্সটেনশন ব্যবহার করা হয় নি যেমনঃ -```js +```js import Gallery from './Gallery'; ``` @@ -198,7 +198,7 @@ export default function App() { export function Profile() { return ( <img - src="https://i.imgur.com/QIrZWGIs.jpg" + src="https://react.dev/images/docs/scientists/QIrZWGIs.jpg" alt="Alan L. Hart" /> ); @@ -286,7 +286,7 @@ export default function App() { export function Profile() { return ( <img - src="https://i.imgur.com/QIrZWGIs.jpg" + src="https://react.dev/images/docs/scientists/QIrZWGIs.jpg" alt="Alan L. Hart" /> ); @@ -354,7 +354,7 @@ export default function Gallery() { export function Profile() { return ( <img - src="https://i.imgur.com/QIrZWGIs.jpg" + src="https://react.dev/images/docs/scientists/QIrZWGIs.jpg" alt="Alan L. Hart" /> ); @@ -404,7 +404,7 @@ export default function Gallery() { export default function Profile() { return ( <img - src="https://i.imgur.com/QIrZWGIs.jpg" + src="https://react.dev/images/docs/scientists/QIrZWGIs.jpg" alt="Alan L. Hart" /> ); diff --git a/src/content/learn/index.md b/src/content/learn/index.md index 6b90da5bc..5d8e2d06e 100644 --- a/src/content/learn/index.md +++ b/src/content/learn/index.md @@ -145,7 +145,7 @@ return ( ```js const user = { name: 'Hedy Lamarr', - imageUrl: 'https://i.imgur.com/yXOvdOSs.jpg', + imageUrl: 'https://react.dev/images/docs/scientists/yXOvdOSs.jpg', imageSize: 90, }; diff --git a/src/content/learn/javascript-in-jsx-with-curly-braces.md b/src/content/learn/javascript-in-jsx-with-curly-braces.md index 736065b03..94b943de0 100644 --- a/src/content/learn/javascript-in-jsx-with-curly-braces.md +++ b/src/content/learn/javascript-in-jsx-with-curly-braces.md @@ -28,7 +28,7 @@ export default function Avatar() { return ( <img className="avatar" - src="https://i.imgur.com/7vQD0fPs.jpg" + src="https://react.dev/images/docs/scientists/7vQD0fPs.jpg" alt="Gregorio Y. Zara" /> ); @@ -41,7 +41,7 @@ export default function Avatar() { </Sandpack> -Here, `"https://i.imgur.com/7vQD0fPs.jpg"` and `"Gregorio Y. Zara"` are being passed as strings. +Here, `"https://react.dev/images/docs/scientists/7vQD0fPs.jpg"` and `"Gregorio Y. Zara"` are being passed as strings. But what if you want to dynamically specify the `src` or `alt` text? You could **use a value from JavaScript by replacing `"` and `"` with `{` and `}`**: @@ -49,7 +49,7 @@ But what if you want to dynamically specify the `src` or `alt` text? You could * ```js export default function Avatar() { - const avatar = 'https://i.imgur.com/7vQD0fPs.jpg'; + const avatar = 'https://react.dev/images/docs/scientists/7vQD0fPs.jpg'; const description = 'Gregorio Y. Zara'; return ( <img @@ -190,7 +190,7 @@ export default function TodoList() { <h1>{person.name}'s Todos</h1> <img className="avatar" - src="https://i.imgur.com/7vQD0fPs.jpg" + src="https://react.dev/images/docs/scientists/7vQD0fPs.jpg" alt="Gregorio Y. Zara" /> <ul> @@ -266,7 +266,7 @@ export default function TodoList() { <h1>{person}'s Todos</h1> <img className="avatar" - src="https://i.imgur.com/7vQD0fPs.jpg" + src="https://react.dev/images/docs/scientists/7vQD0fPs.jpg" alt="Gregorio Y. Zara" /> <ul> @@ -314,7 +314,7 @@ export default function TodoList() { <h1>{person.name}'s Todos</h1> <img className="avatar" - src="https://i.imgur.com/7vQD0fPs.jpg" + src="https://react.dev/images/docs/scientists/7vQD0fPs.jpg" alt="Gregorio Y. Zara" /> <ul> @@ -358,7 +358,7 @@ export default function TodoList() { <h1>{person.name}'s Todos</h1> <img className="avatar" - src="https://i.imgur.com/7vQD0fPs.jpg" + src="https://react.dev/images/docs/scientists/7vQD0fPs.jpg" alt="Gregorio Y. Zara" /> <ul> @@ -388,7 +388,7 @@ Move the image URL into a property called `person.imageUrl` and read it from the ```js const person = { name: 'Gregorio Y. Zara', - imageUrl: "https://i.imgur.com/7vQD0fPs.jpg", + imageUrl: "https://react.dev/images/docs/scientists/7vQD0fPs.jpg", theme: { backgroundColor: 'black', color: 'pink' @@ -428,7 +428,7 @@ body > div > div { padding: 20px; } In the object below, the full image URL is split into four parts: base URL, `imageId`, `imageSize`, and file extension. -We want the image URL to combine these attributes together: base URL (always `'https://i.imgur.com/'`), `imageId` (`'7vQD0fP'`), `imageSize` (`'s'`), and file extension (always `'.jpg'`). However, something is wrong with how the `<img>` tag specifies its `src`. +We want the image URL to combine these attributes together: base URL (always `'https://react.dev/images/docs/scientists/'`), `imageId` (`'7vQD0fP'`), `imageSize` (`'s'`), and file extension (always `'.jpg'`). However, something is wrong with how the `<img>` tag specifies its `src`. Can you fix it? @@ -436,7 +436,7 @@ Can you fix it? ```js -const baseUrl = 'https://i.imgur.com/'; +const baseUrl = 'https://react.dev/images/docs/scientists/'; const person = { name: 'Gregorio Y. Zara', imageId: '7vQD0fP', @@ -487,7 +487,7 @@ You can write it as `src={baseUrl + person.imageId + person.imageSize + '.jpg'}` <Sandpack> ```js -const baseUrl = 'https://i.imgur.com/'; +const baseUrl = 'https://react.dev/images/docs/scientists/'; const person = { name: 'Gregorio Y. Zara', imageId: '7vQD0fP', @@ -564,7 +564,7 @@ export default function TodoList() { ```js src/utils.js export function getImageUrl(person) { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + person.imageSize + '.jpg' diff --git a/src/content/learn/keeping-components-pure.md b/src/content/learn/keeping-components-pure.md index 53ea148c9..1786ceb92 100644 --- a/src/content/learn/keeping-components-pure.md +++ b/src/content/learn/keeping-components-pure.md @@ -27,6 +27,7 @@ title: কম্পোনেন্টকে বিশুদ্ধ রাখা এই গণিতের সূত্রটিই ধরুনঃ <Math><MathI>y</MathI> = 2<MathI>x</MathI></Math>. +<<<<<<< HEAD যদি <Math><MathI>x</MathI> = 2</Math> হয়, তাহলে <Math><MathI>y</MathI> = 4</Math> হবে। সবসময়। যদি <Math><MathI>x</MathI> = 3</Math> হয়, তাহলে <Math><MathI>y</MathI> = 6</Math> হবে। সবসময়। @@ -34,6 +35,15 @@ title: কম্পোনেন্টকে বিশুদ্ধ রাখা যদি <Math><MathI>x</MathI> = 3</Math> হয়, তাহলে <MathI>y</MathI> কখনো কখনো <Math>9</Math> অথবা <Math>–1</Math> অথবা <Math>2.5</Math> হবেনা, দিনের কোন সময় বা স্টক মার্কেটের অবস্থার উপর নির্ভর করে। যদি <Math><MathI>y</MathI> = 2<MathI>x</MathI></Math> এবং <Math><MathI>x</MathI> = 3</Math> হয়, <MathI>y</MathI> তাহলে _সবসময়_ <Math>6</Math> হবে। +======= +If <Math><MathI>x</MathI> = 2</Math> then <Math><MathI>y</MathI> = 4</Math>. Always. + +If <Math><MathI>x</MathI> = 3</Math> then <Math><MathI>y</MathI> = 6</Math>. Always. + +If <Math><MathI>x</MathI> = 3</Math>, <MathI>y</MathI> won't sometimes be <Math>9</Math> or <Math>–1</Math> or <Math>2.5</Math> depending on the time of day or the state of the stock market. + +If <Math><MathI>y</MathI> = 2<MathI>x</MathI></Math> and <Math><MathI>x</MathI> = 3</Math>, <MathI>y</MathI> will _always_ be <Math>6</Math>. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca আমরা যদি এটিকে একটি জাভাস্ক্রিপ্ট ফাংশনে রুপ দেই, তাহলে এটি এমন দেখাবেঃ @@ -52,7 +62,7 @@ React এই ধারণার উপর ভিত্তি করেই তৈ ```js src/App.js function Recipe({ drinkers }) { return ( - <ol> + <ol> <li>Boil {drinkers} cups of water.</li> <li>Add {drinkers} spoons of tea and {0.5 * drinkers} spoons of spice.</li> <li>Add {0.5 * drinkers} cups of milk to boil and sugar to taste.</li> @@ -75,11 +85,19 @@ export default function App() { </Sandpack> +<<<<<<< HEAD আপনি যখন `Recipe` তে `drinkers={2}` পাস করবেন, এটি JSX রিটার্ন করবে যাতে `2 cups of water` থাকবে। সবসময়। +======= +When you pass `drinkers={2}` to `Recipe`, it will return JSX containing `2 cups of water`. Always. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca যদি আপনি `drinkers={4}` পাস করেন, এটি JSX রিটার্ন করবে যাতে `4 cups of water` থাকবে। সবসময়। +<<<<<<< HEAD ঠিক একটি গণিতের সূত্রের মত। +======= +Just like a math formula. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca আপনি আপনার কম্পোনেন্টকে একটি রেসিপি হিসেবে চিন্তা করতে পারেনঃ যদি আপনি এগুলো অনুসরণ করেন এবং রান্নার সময়ে নতুন কোন উপাদান না আনেন তাহলে আপনি সবসময় একই খাবার পাবেন। এই "খাবার" হল JSX যা আপনার কম্পোনেন্ট React কে [রেন্ডার](/learn/render-and-commit) করার জন্য পরিবেশন করে। @@ -217,7 +235,7 @@ Every new React feature we're building takes advantage of purity. From data fetc * A component must be pure, meaning: * **It minds its own business.** It should not change any objects or variables that existed before rendering. - * **Same inputs, same output.** Given the same inputs, a component should always return the same JSX. + * **Same inputs, same output.** Given the same inputs, a component should always return the same JSX. * Rendering can happen at any time, so components should not depend on each others' rendering sequence. * You should not mutate any of the inputs that your components use for rendering. That includes props, state, and context. To update the screen, ["set" state](/learn/state-a-components-memory) instead of mutating preexisting objects. * Strive to express your component's logic in the JSX you return. When you need to "change things", you'll usually want to do it in an event handler. As a last resort, you can `useEffect`. @@ -226,7 +244,7 @@ Every new React feature we're building takes advantage of purity. From data fetc </Recap> - + <Challenges> #### Fix a broken clock {/*fix-a-broken-clock*/} @@ -451,7 +469,7 @@ export default function App() { ```js src/utils.js hidden export function getImageUrl(person, size = 's') { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + size + '.jpg' @@ -549,7 +567,7 @@ export default function App() { ```js src/utils.js hidden export function getImageUrl(person, size = 's') { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + size + '.jpg' diff --git a/src/content/learn/lifecycle-of-reactive-effects.md b/src/content/learn/lifecycle-of-reactive-effects.md index 72a2e7755..608db09a0 100644 --- a/src/content/learn/lifecycle-of-reactive-effects.md +++ b/src/content/learn/lifecycle-of-reactive-effects.md @@ -293,7 +293,7 @@ You might be wondering how React knew that your Effect needed to re-synchronize ```js {1,3,8} function ChatRoom({ roomId }) { // The roomId prop may change over time useEffect(() => { - const connection = createConnection(serverUrl, roomId); // This Effect reads roomId + const connection = createConnection(serverUrl, roomId); // This Effect reads roomId connection.connect(); return () => { connection.disconnect(); @@ -969,7 +969,7 @@ export default function App() { <label> <input type="checkbox" checked={canMove} - onChange={e => setCanMove(e.target.checked)} + onChange={e => setCanMove(e.target.checked)} /> The dot is allowed to move </label> @@ -1027,7 +1027,7 @@ export default function App() { <label> <input type="checkbox" checked={canMove} - onChange={e => setCanMove(e.target.checked)} + onChange={e => setCanMove(e.target.checked)} /> The dot is allowed to move </label> @@ -1083,7 +1083,7 @@ export default function App() { <label> <input type="checkbox" checked={canMove} - onChange={e => setCanMove(e.target.checked)} + onChange={e => setCanMove(e.target.checked)} /> The dot is allowed to move </label> @@ -1155,7 +1155,7 @@ export default function App() { <label> <input type="checkbox" checked={canMove} - onChange={e => setCanMove(e.target.checked)} + onChange={e => setCanMove(e.target.checked)} /> The dot is allowed to move </label> @@ -1220,7 +1220,7 @@ export default function App() { <label> <input type="checkbox" checked={canMove} - onChange={e => setCanMove(e.target.checked)} + onChange={e => setCanMove(e.target.checked)} /> The dot is allowed to move </label> @@ -1279,7 +1279,7 @@ export default function App() { <label> <input type="checkbox" checked={canMove} - onChange={e => setCanMove(e.target.checked)} + onChange={e => setCanMove(e.target.checked)} /> The dot is allowed to move </label> @@ -1711,7 +1711,7 @@ async function fetchPlanets() { name: 'Venus' }, { id: 'mars', - name: 'Mars' + name: 'Mars' }]); }, 1000); }); @@ -1735,7 +1735,7 @@ async function fetchPlaces(planetId) { name: 'Spain' }, { id: 'vietnam', - name: 'Vietnam' + name: 'Vietnam' }]); } else if (planetId === 'venus') { resolve([{ @@ -1746,7 +1746,7 @@ async function fetchPlaces(planetId) { name: 'Diana Chasma' }, { id: 'kumsong-vallis', - name: 'Kŭmsŏng Vallis' + name: 'Kŭmsŏng Vallis' }]); } else if (planetId === 'mars') { resolve([{ @@ -1879,7 +1879,7 @@ async function fetchPlanets() { name: 'Venus' }, { id: 'mars', - name: 'Mars' + name: 'Mars' }]); }, 1000); }); @@ -1903,7 +1903,7 @@ async function fetchPlaces(planetId) { name: 'Spain' }, { id: 'vietnam', - name: 'Vietnam' + name: 'Vietnam' }]); } else if (planetId === 'venus') { resolve([{ @@ -1914,7 +1914,7 @@ async function fetchPlaces(planetId) { name: 'Diana Chasma' }, { id: 'kumsong-vallis', - name: 'Kŭmsŏng Vallis' + name: 'Kŭmsŏng Vallis' }]); } else if (planetId === 'mars') { resolve([{ @@ -2042,7 +2042,7 @@ async function fetchPlanets() { name: 'Venus' }, { id: 'mars', - name: 'Mars' + name: 'Mars' }]); }, 1000); }); @@ -2066,7 +2066,7 @@ async function fetchPlaces(planetId) { name: 'Spain' }, { id: 'vietnam', - name: 'Vietnam' + name: 'Vietnam' }]); } else if (planetId === 'venus') { resolve([{ @@ -2077,7 +2077,7 @@ async function fetchPlaces(planetId) { name: 'Diana Chasma' }, { id: 'kumsong-vallis', - name: 'Kŭmsŏng Vallis' + name: 'Kŭmsŏng Vallis' }]); } else if (planetId === 'mars') { resolve([{ diff --git a/src/content/learn/passing-data-deeply-with-context.md b/src/content/learn/passing-data-deeply-with-context.md index e07e94786..6e69ad8fc 100644 --- a/src/content/learn/passing-data-deeply-with-context.md +++ b/src/content/learn/passing-data-deeply-with-context.md @@ -853,12 +853,21 @@ CSS এ, ভিন্ন ভিন্ন property যেমন `color` এবং ## কনটেক্সটের ব্যবহার {/*use-cases-for-context*/} +<<<<<<< HEAD * **থিমিং:** যদি আপনার অ্যাপ ইউজারকে থিম চেঞ্জ করতে দেয় (যেমন, ডার্ক মোড), তখন আপনি আপনার অ্যাপের সবার উপরের স্তরে একটি কনটেক্সট প্রোভাইডার রাখতে পারেন, এবং কনটেক্সটটি ঐসকল কম্পোনেন্টের ভিতর ইউজ করতে পারেন যাদের বর্ণ থিমের সাথে পরিবর্তন হতে পারে। * **বর্তমান একাউন্ট:** বর্তমানে কোন ইউজার লগড ইন আছে তা অনেক কম্পোনেন্টের জানা দরকার হতে পারে। এই ডেটটি কনটেক্সটি রাখলে tree এর যেকোনো স্থানে ডেটটি রিড করা সুবিধাজনক হয়ে যায়। কিছু অ্যাপ আপনাকে একই সময়ে কয়েকটি একাউন্ট ব্যবহার করতে দেয় (যেমন, আরেক ইউজার হয়ে কমেন্ট করতে দেয়া)। ঐসকল ক্ষেত্রে, UI এর একটি অংশ, ভিন্ন current account ভ্যালুর একটি নেস্টেড প্রোভাইডার দিয়ে wrap করাটা সহজ হতে পারে। * **রাউটিং:** অধিকাংশ রাউটিং করার পদ্ধতিগুলো, বর্তমান রাউট মনে রাখার জন্য ভিতরে ভিতরে কনটেক্সট ইউজ করে। এভাবেই প্রত্যেকটি লিঙ্ক "জানতে পারে" যে সে active কিনা। যদি আপনি নিজেই রাউটার তৈরি করেন, আপনিও হয়তো এমনটাই করতে চাইবেন। * **স্টেট ম্যানেজ করা:** আপনার অ্যাপ যখন বড় হতে থাকে, আপনি এমন পর্যায়ে চলে যেতে পারেন যখন আপনার অ্যাপের সবার উপরের স্তরের খুব কাছেই অনেক স্টেট একত্র হয়ে যায়। যেগুলো নিচের অনেক দূরবর্তী কম্পোনেন্ট পরিবর্তন করার প্রয়োজন পড়তে পারে। বেশি ঝামেলা ছাড়াই, জটিল স্টেট ম্যানেজ এবং সেগুলোকে নিচের অনেক দূরবর্তী কম্পোনেন্টসের কাছে পাস করার জন্য [একটি reducer কে কনটেক্সটের সাথে ব্যবহার করা](/learn/scaling-up-with-reducer-and-context) খুবই স্বাভাবিক। কনটেক্সট শুধু স্ট্যাটিক ভ্যালুর মধ্যেই সীমাবদ্ধ নয়। যদি আপনি পরবর্তী রেন্ডারে ভিন্ন ভ্যালু পাস করেন, React তখন এর নিম্নবর্তী সকল কম্পোনেন্ট যেগুলো ঐ ভ্যালু রিড করছিলো তাদেরকে আপডেট করবে! এজন্যই প্রায়ই কনটেক্সট ও স্টেট একত্রে ব্যবহার করা হয়ে থাকে। +======= +* **Theming:** If your app lets the user change its appearance (e.g. dark mode), you can put a context provider at the top of your app, and use that context in components that need to adjust their visual look. +* **Current account:** Many components might need to know the currently logged in user. Putting it in context makes it convenient to read it anywhere in the tree. Some apps also let you operate multiple accounts at the same time (e.g. to leave a comment as a different user). In those cases, it can be convenient to wrap a part of the UI into a nested provider with a different current account value. +* **Routing:** Most routing solutions use context internally to hold the current route. This is how every link "knows" whether it's active or not. If you build your own router, you might want to do it too. +* **Managing state:** As your app grows, you might end up with a lot of state closer to the top of your app. Many distant components below may want to change it. It is common to [use a reducer together with context](/learn/scaling-up-with-reducer-and-context) to manage complex state and pass it down to distant components without too much hassle. + +Context is not limited to static values. If you pass a different value on the next render, React will update all the components reading it below! This is why context is often used in combination with state. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca সাধারণভাবে, যদি কোনো ইনফর্মেশন tree এর বিভিন্ন অংশে দূরবর্তী কম্পোনেন্টগুলোর প্রয়োজন হয়, তাহলে কনটেক্সট তখন আপনার উপকারে আসবে এটি তার উত্তম লক্ষণ। @@ -963,27 +972,27 @@ export const places = [{ description: 'The tradition of choosing bright colors for houses began in the late 20th century.', imageId: 'K9HVAGH' }, { - id: 1, + id: 1, name: 'Rainbow Village in Taichung, Taiwan', description: 'To save the houses from demolition, Huang Yung-Fu, a local resident, painted all 1,200 of them in 1924.', imageId: '9EAYZrt' }, { - id: 2, + id: 2, name: 'Macromural de Pachuca, Mexico', description: 'One of the largest murals in the world covering homes in a hillside neighborhood.', imageId: 'DgXHVwu' }, { - id: 3, + id: 3, name: 'Selarón Staircase in Rio de Janeiro, Brazil', description: 'This landmark was created by Jorge Selarón, a Chilean-born artist, as a "tribute to the Brazilian people."', imageId: 'aeO3rpI' }, { - id: 4, + id: 4, name: 'Burano, Italy', description: 'The houses are painted following a specific color system dating back to 16th century.', imageId: 'kxsph5C' }, { - id: 5, + id: 5, name: 'Chefchaouen, Marocco', description: 'There are a few theories on why the houses are painted blue, including that the color repels mosquitos or that it symbolizes sky and heaven.', imageId: 'rTqKo46' @@ -998,7 +1007,7 @@ export const places = [{ ```js src/utils.js export function getImageUrl(place) { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + place.imageId + 'l.jpg' ); @@ -1007,9 +1016,9 @@ export function getImageUrl(place) { ```css ul { list-style-type: none; padding: 0px 10px; } -li { - margin-bottom: 10px; - display: grid; +li { + margin-bottom: 10px; + display: grid; grid-template-columns: auto 1fr; gap: 20px; align-items: center; @@ -1102,27 +1111,27 @@ export const places = [{ description: 'The tradition of choosing bright colors for houses began in the late 20th century.', imageId: 'K9HVAGH' }, { - id: 1, + id: 1, name: 'Rainbow Village in Taichung, Taiwan', description: 'To save the houses from demolition, Huang Yung-Fu, a local resident, painted all 1,200 of them in 1924.', imageId: '9EAYZrt' }, { - id: 2, + id: 2, name: 'Macromural de Pachuca, Mexico', description: 'One of the largest murals in the world covering homes in a hillside neighborhood.', imageId: 'DgXHVwu' }, { - id: 3, + id: 3, name: 'Selarón Staircase in Rio de Janeiro, Brazil', description: 'This landmark was created by Jorge Selarón, a Chilean-born artist, as a "tribute to the Brazilian people".', imageId: 'aeO3rpI' }, { - id: 4, + id: 4, name: 'Burano, Italy', description: 'The houses are painted following a specific color system dating back to 16th century.', imageId: 'kxsph5C' }, { - id: 5, + id: 5, name: 'Chefchaouen, Marocco', description: 'There are a few theories on why the houses are painted blue, including that the color repels mosquitos or that it symbolizes sky and heaven.', imageId: 'rTqKo46' @@ -1137,7 +1146,7 @@ export const places = [{ ```js src/utils.js export function getImageUrl(place) { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + place.imageId + 'l.jpg' ); @@ -1146,9 +1155,9 @@ export function getImageUrl(place) { ```css ul { list-style-type: none; padding: 0px 10px; } -li { - margin-bottom: 10px; - display: grid; +li { + margin-bottom: 10px; + display: grid; grid-template-columns: auto 1fr; gap: 20px; align-items: center; diff --git a/src/content/learn/passing-props-to-a-component.md b/src/content/learn/passing-props-to-a-component.md index aae682d14..c0f16be94 100644 --- a/src/content/learn/passing-props-to-a-component.md +++ b/src/content/learn/passing-props-to-a-component.md @@ -29,7 +29,7 @@ function Avatar() { return ( <img className="avatar" - src="https://i.imgur.com/1bX5QH6.jpg" + src="https://react.dev/images/docs/scientists/1bX5QH6.jpg" alt="Lin Lanying" width={100} height={100} @@ -126,21 +126,21 @@ export default function Profile() { <div> <Avatar size={100} - person={{ - name: 'Katsuko Saruhashi', + person={{ + name: 'Katsuko Saruhashi', imageId: 'YfeOqp2' }} /> <Avatar size={80} person={{ - name: 'Aklilu Lemma', + name: 'Aklilu Lemma', imageId: 'OKS67lh' }} /> <Avatar size={50} - person={{ + person={{ name: 'Lin Lanying', imageId: '1bX5QH6' }} @@ -153,7 +153,7 @@ export default function Profile() { ```js src/utils.js export function getImageUrl(person, size = 's') { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + size + '.jpg' @@ -291,7 +291,7 @@ export default function Profile() { <Card> <Avatar size={100} - person={{ + person={{ name: 'Katsuko Saruhashi', imageId: 'YfeOqp2' }} @@ -320,7 +320,7 @@ export default function Avatar({ person, size }) { ```js src/utils.js export function getImageUrl(person, size = 's') { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + size + '.jpg' @@ -453,11 +453,11 @@ export default function Gallery() { /> <ul> <li> - <b>Profession: </b> + <b>Profession: </b> physicist and chemist </li> <li> - <b>Awards: 4 </b> + <b>Awards: 4 </b> (Nobel Prize in Physics, Nobel Prize in Chemistry, Davy Medal, Matteucci Medal) </li> <li> @@ -477,11 +477,11 @@ export default function Gallery() { /> <ul> <li> - <b>Profession: </b> + <b>Profession: </b> geochemist </li> <li> - <b>Awards: 2 </b> + <b>Awards: 2 </b> (Miyake Prize for geochemistry, Tanaka Prize) </li> <li> @@ -498,7 +498,7 @@ export default function Gallery() { ```js src/utils.js export function getImageUrl(imageId, size = 's') { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + imageId + size + '.jpg' @@ -606,7 +606,7 @@ export default function Gallery() { ```js src/utils.js export function getImageUrl(imageId, size = 's') { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + imageId + size + '.jpg' @@ -703,7 +703,7 @@ export default function Gallery() { ```js src/utils.js export function getImageUrl(person, size = 's') { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + size + '.jpg' @@ -758,8 +758,8 @@ export default function Profile() { return ( <Avatar size={40} - person={{ - name: 'Gregorio Y. Zara', + person={{ + name: 'Gregorio Y. Zara', imageId: '7vQD0fP' }} /> @@ -770,7 +770,7 @@ export default function Profile() { ```js src/utils.js export function getImageUrl(person, size) { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + size + '.jpg' @@ -814,15 +814,15 @@ export default function Profile() { <> <Avatar size={40} - person={{ - name: 'Gregorio Y. Zara', + person={{ + name: 'Gregorio Y. Zara', imageId: '7vQD0fP' }} /> <Avatar size={120} - person={{ - name: 'Gregorio Y. Zara', + person={{ + name: 'Gregorio Y. Zara', imageId: '7vQD0fP' }} /> @@ -834,7 +834,7 @@ export default function Profile() { ```js src/utils.js export function getImageUrl(person, size) { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + size + '.jpg' @@ -878,22 +878,22 @@ export default function Profile() { <> <Avatar size={40} - person={{ - name: 'Gregorio Y. Zara', + person={{ + name: 'Gregorio Y. Zara', imageId: '7vQD0fP' }} /> <Avatar size={70} - person={{ - name: 'Gregorio Y. Zara', + person={{ + name: 'Gregorio Y. Zara', imageId: '7vQD0fP' }} /> <Avatar size={120} - person={{ - name: 'Gregorio Y. Zara', + person={{ + name: 'Gregorio Y. Zara', imageId: '7vQD0fP' }} /> @@ -905,7 +905,7 @@ export default function Profile() { ```js src/utils.js export function getImageUrl(person, size) { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + size + '.jpg' @@ -938,7 +938,7 @@ export default function Profile() { <h1>Photo</h1> <img className="avatar" - src="https://i.imgur.com/OKS67lhm.jpg" + src="https://react.dev/images/docs/scientists/OKS67lhm.jpg" alt="Aklilu Lemma" width={70} height={70} @@ -1011,7 +1011,7 @@ export default function Profile() { <h1>Photo</h1> <img className="avatar" - src="https://i.imgur.com/OKS67lhm.jpg" + src="https://react.dev/images/docs/scientists/OKS67lhm.jpg" alt="Aklilu Lemma" width={100} height={100} @@ -1073,7 +1073,7 @@ export default function Profile() { <Card title="Photo"> <img className="avatar" - src="https://i.imgur.com/OKS67lhm.jpg" + src="https://react.dev/images/docs/scientists/OKS67lhm.jpg" alt="Aklilu Lemma" width={100} height={100} diff --git a/src/content/learn/preserving-and-resetting-state.md b/src/content/learn/preserving-and-resetting-state.md index 041fae355..685f63ef4 100644 --- a/src/content/learn/preserving-and-resetting-state.md +++ b/src/content/learn/preserving-and-resetting-state.md @@ -86,7 +86,7 @@ label { </Sandpack> -Here's how these look as a tree: +Here's how these look as a tree: <DiagramGroup> @@ -186,7 +186,7 @@ export default function App() { return ( <div> <Counter /> - {showB && <Counter />} + {showB && <Counter />} <label> <input type="checkbox" @@ -288,9 +288,9 @@ export default function App() { return ( <div> {isFancy ? ( - <Counter isFancy={true} /> + <Counter isFancy={true} /> ) : ( - <Counter isFancy={false} /> + <Counter isFancy={false} /> )} <label> <input @@ -496,9 +496,9 @@ export default function App() { return ( <div> {isPaused ? ( - <p>See you later!</p> + <p>See you later!</p> ) : ( - <Counter /> + <Counter /> )} <label> <input @@ -596,7 +596,7 @@ export default function App() { <div> {isFancy ? ( <div> - <Counter isFancy={true} /> + <Counter isFancy={true} /> </div> ) : ( <section> @@ -1431,7 +1431,7 @@ export default function App() { if (reverse) { return ( <> - <Field label="Last name" /> + <Field label="Last name" /> <Field label="First name" /> {checkbox} </> @@ -1439,11 +1439,11 @@ export default function App() { } else { return ( <> - <Field label="First name" /> + <Field label="First name" /> <Field label="Last name" /> {checkbox} </> - ); + ); } } @@ -1493,7 +1493,7 @@ export default function App() { if (reverse) { return ( <> - <Field key="lastName" label="Last name" /> + <Field key="lastName" label="Last name" /> <Field key="firstName" label="First name" /> {checkbox} </> @@ -1501,11 +1501,11 @@ export default function App() { } else { return ( <> - <Field key="firstName" label="First name" /> + <Field key="firstName" label="First name" /> <Field key="lastName" label="Last name" /> {checkbox} </> - ); + ); } } @@ -1888,25 +1888,25 @@ export default function Gallery() { let images = [{ place: 'Penang, Malaysia', - src: 'https://i.imgur.com/FJeJR8M.jpg' + src: 'https://react.dev/images/docs/scientists/FJeJR8M.jpg' }, { place: 'Lisbon, Portugal', - src: 'https://i.imgur.com/dB2LRbj.jpg' + src: 'https://react.dev/images/docs/scientists/dB2LRbj.jpg' }, { place: 'Bilbao, Spain', - src: 'https://i.imgur.com/z08o2TS.jpg' + src: 'https://react.dev/images/docs/scientists/z08o2TS.jpg' }, { place: 'Valparaíso, Chile', - src: 'https://i.imgur.com/Y3utgTi.jpg' + src: 'https://react.dev/images/docs/scientists/Y3utgTi.jpg' }, { place: 'Schwyz, Switzerland', - src: 'https://i.imgur.com/JBbMpWY.jpg' + src: 'https://react.dev/images/docs/scientists/JBbMpWY.jpg' }, { place: 'Prague, Czechia', - src: 'https://i.imgur.com/QwUKKmF.jpg' + src: 'https://react.dev/images/docs/scientists/QwUKKmF.jpg' }, { place: 'Ljubljana, Slovenia', - src: 'https://i.imgur.com/3aIiwfm.jpg' + src: 'https://react.dev/images/docs/scientists/3aIiwfm.jpg' }]; ``` @@ -1956,25 +1956,25 @@ export default function Gallery() { let images = [{ place: 'Penang, Malaysia', - src: 'https://i.imgur.com/FJeJR8M.jpg' + src: 'https://react.dev/images/docs/scientists/FJeJR8M.jpg' }, { place: 'Lisbon, Portugal', - src: 'https://i.imgur.com/dB2LRbj.jpg' + src: 'https://react.dev/images/docs/scientists/dB2LRbj.jpg' }, { place: 'Bilbao, Spain', - src: 'https://i.imgur.com/z08o2TS.jpg' + src: 'https://react.dev/images/docs/scientists/z08o2TS.jpg' }, { place: 'Valparaíso, Chile', - src: 'https://i.imgur.com/Y3utgTi.jpg' + src: 'https://react.dev/images/docs/scientists/Y3utgTi.jpg' }, { place: 'Schwyz, Switzerland', - src: 'https://i.imgur.com/JBbMpWY.jpg' + src: 'https://react.dev/images/docs/scientists/JBbMpWY.jpg' }, { place: 'Prague, Czechia', - src: 'https://i.imgur.com/QwUKKmF.jpg' + src: 'https://react.dev/images/docs/scientists/QwUKKmF.jpg' }, { place: 'Ljubljana, Slovenia', - src: 'https://i.imgur.com/3aIiwfm.jpg' + src: 'https://react.dev/images/docs/scientists/3aIiwfm.jpg' }]; ``` diff --git a/src/content/learn/queueing-a-series-of-state-updates.md b/src/content/learn/queueing-a-series-of-state-updates.md index 04fb62219..5fabb1d19 100644 --- a/src/content/learn/queueing-a-series-of-state-updates.md +++ b/src/content/learn/queueing-a-series-of-state-updates.md @@ -177,7 +177,11 @@ h1 { display: inline-block; margin: 10px; width: 30px; text-align: center; } | "`5` দিয়ে প্রতিস্থাপন" | `0` (অব্যবহৃত) | `5` | | `n => n + 1` | `5` | `5 + 1 = 6` | +<<<<<<< HEAD চূড়ান্ত ফলাফল হিসাবে React `6` সঞ্চয় করে এবং `useState` এ রিটার্ন করে। +======= +React stores `6` as the final result and returns it from `useState`. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca <Note> @@ -305,7 +309,7 @@ export default function RequestTracker() { Completed: {completed} </h3> <button onClick={handleClick}> - Buy + Buy </button> </> ); @@ -349,7 +353,7 @@ export default function RequestTracker() { Completed: {completed} </h3> <button onClick={handleClick}> - Buy + Buy </button> </> ); diff --git a/src/content/learn/react-compiler/debugging.md b/src/content/learn/react-compiler/debugging.md index 1883125a6..a2981e094 100644 --- a/src/content/learn/react-compiler/debugging.md +++ b/src/content/learn/react-compiler/debugging.md @@ -43,7 +43,7 @@ Follow these steps when you encounter issues: ### Compiler Build Errors {/*compiler-build-errors*/} -If you encounter a compiler error that unexpectedly breaks your build, this is likely a bug in the compiler. Report it to the [facebook/react](https://github.com/facebook/react/issues) repository with: +If you encounter a compiler error that unexpectedly breaks your build, this is likely a bug in the compiler. Report it to the [react/react](https://github.com/react/react/issues) repository with: - The error message - The code that caused the error - Your React and compiler versions @@ -81,7 +81,7 @@ If you believe you've found a compiler bug: 1. **Verify it's not a Rules of React violation** - Check with ESLint 2. **Create a minimal reproduction** - Isolate the issue in a small example 3. **Test without the compiler** - Confirm the issue only occurs with compilation -4. **File an [issue](https://github.com/facebook/react/issues/new?template=compiler_bug_report.yml)**: +4. **File an [issue](https://github.com/react/react/issues/new?template=compiler_bug_report.yml)**: - React and compiler versions - Minimal reproduction code - Expected vs actual behavior diff --git a/src/content/learn/react-compiler/installation.md b/src/content/learn/react-compiler/installation.md index 6cce34c6b..b386e866e 100644 --- a/src/content/learn/react-compiler/installation.md +++ b/src/content/learn/react-compiler/installation.md @@ -64,9 +64,32 @@ module.exports = { ### Vite {/*vite*/} -If you use Vite, you can add the plugin to vite-plugin-react: +If you use Vite with version 6.0.0 or later of `@vitejs/plugin-react`, you can use the `reactCompilerPreset`: -```js {3,9} +<TerminalBlock> +npm install -D @rolldown/plugin-babel +</TerminalBlock> + +```js {3-4,9-11} +// vite.config.js +import { defineConfig } from 'vite'; +import react, { reactCompilerPreset } from '@vitejs/plugin-react'; +import babel from '@rolldown/plugin-babel'; + +export default defineConfig({ + plugins: [ + react(), + babel({ + presets: [reactCompilerPreset()] + }), + ], +}); +``` + +<Note> +In `@vitejs/plugin-react@6.0.0`, the inline Babel option was removed. If you're using an older version, you can use: + +```js // vite.config.js import { defineConfig } from 'vite'; import react from '@vitejs/plugin-react'; @@ -81,26 +104,21 @@ export default defineConfig({ ], }); ``` +</Note> -Alternatively, if you prefer a separate Babel plugin for Vite: - -<TerminalBlock> -npm install -D vite-plugin-babel -</TerminalBlock> +Alternatively, you can use the Babel plugin directly with `@rolldown/plugin-babel`: -```js {2,11} +```js {3,9} // vite.config.js -import babel from 'vite-plugin-babel'; import { defineConfig } from 'vite'; import react from '@vitejs/plugin-react'; +import babel from '@rolldown/plugin-babel'; export default defineConfig({ plugins: [ react(), babel({ - babelConfig: { - plugins: ['babel-plugin-react-compiler'], - }, + plugins: ['babel-plugin-react-compiler'], }), ], }); @@ -172,7 +190,7 @@ Install the ESLint plugin: npm install -D eslint-plugin-react-hooks@latest </TerminalBlock> -If you haven't already configured eslint-plugin-react-hooks, follow the [installation instructions in the readme](https://github.com/facebook/react/blob/main/packages/eslint-plugin-react-hooks/README.md#installation). The compiler rules are available in the `recommended-latest` preset. +If you haven't already configured eslint-plugin-react-hooks, follow the [installation instructions in the readme](https://github.com/react/react/blob/main/packages/eslint-plugin-react-hooks/README.md#installation). The compiler rules are available in the `recommended-latest` preset. The ESLint rule will: - Identify violations of the [Rules of React](/reference/rules) diff --git a/src/content/learn/reacting-to-input-with-state.md b/src/content/learn/reacting-to-input-with-state.md index 8c333670f..36dd88248 100644 --- a/src/content/learn/reacting-to-input-with-state.md +++ b/src/content/learn/reacting-to-input-with-state.md @@ -518,7 +518,7 @@ export default function Picture() { <img className="picture" alt="Rainbow houses in Kampung Pelangi, Indonesia" - src="https://i.imgur.com/5qwVYb1.jpeg" + src="https://react.dev/images/docs/scientists/5qwVYb1.jpeg" /> </div> ); @@ -594,7 +594,7 @@ export default function Picture() { }} className={pictureClassName} alt="Rainbow houses in Kampung Pelangi, Indonesia" - src="https://i.imgur.com/5qwVYb1.jpeg" + src="https://react.dev/images/docs/scientists/5qwVYb1.jpeg" /> </div> ); @@ -649,7 +649,7 @@ export default function Picture() { <img className="picture picture--active" alt="Rainbow houses in Kampung Pelangi, Indonesia" - src="https://i.imgur.com/5qwVYb1.jpeg" + src="https://react.dev/images/docs/scientists/5qwVYb1.jpeg" onClick={e => e.stopPropagation()} /> </div> @@ -660,7 +660,7 @@ export default function Picture() { <img className="picture" alt="Rainbow houses in Kampung Pelangi, Indonesia" - src="https://i.imgur.com/5qwVYb1.jpeg" + src="https://react.dev/images/docs/scientists/5qwVYb1.jpeg" onClick={() => setIsActive(true)} /> </div> diff --git a/src/content/learn/referencing-values-with-refs.md b/src/content/learn/referencing-values-with-refs.md index 61ab4d388..cf4391ad6 100644 --- a/src/content/learn/referencing-values-with-refs.md +++ b/src/content/learn/referencing-values-with-refs.md @@ -34,7 +34,7 @@ const ref = useRef(0); `useRef` এমন একটি অবজেক্ট রিটার্ন করেঃ ```js -{ +{ current: 0 // The value you passed to useRef } ``` diff --git a/src/content/learn/removing-effect-dependencies.md b/src/content/learn/removing-effect-dependencies.md index 4509b7eb2..2204af8c3 100644 --- a/src/content/learn/removing-effect-dependencies.md +++ b/src/content/learn/removing-effect-dependencies.md @@ -412,7 +412,7 @@ function Form() { function handleSubmit() { setSubmitted(true); - } + } // ... } @@ -430,7 +430,7 @@ function Form() { // ✅ ভালো: Event-specific logic event handler থেকে কল করা হয় post('/api/register'); showNotification('Successfully registered!', theme); - } + } // ... } @@ -882,7 +882,11 @@ const options2 = { serverUrl: 'https://localhost:1234', roomId: 'music' }; console.log(Object.is(options1, options2)); // false ``` +<<<<<<< HEAD **Object এবং function dependency আপনার Effect কে আপনার প্রয়োজনের চেয়ে বেশি ঘন ঘন পুনরায় সিঙ্ক্রোনাইজ করতে পারে।** +======= +**Object and function dependencies can make your Effect re-synchronize more often than you need.** +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca এই কারণেই, যখনই সম্ভব, আপনার Effect এর dependency হিসাবে object এবং function এড়ানোর চেষ্টা করা উচিত। পরিবর্তে, তাদের component এর বাইরে, Effect এর ভিতরে সরানোর চেষ্টা করুন, অথবা তাদের থেকে primitive value extract করুন। diff --git a/src/content/learn/render-and-commit.md b/src/content/learn/render-and-commit.md index 1f2773d17..f49458462 100644 --- a/src/content/learn/render-and-commit.md +++ b/src/content/learn/render-and-commit.md @@ -54,7 +54,7 @@ root.render(<Image />); export default function Image() { return ( <img - src="https://i.imgur.com/ZF6s192.jpg" + src="https://react.dev/images/docs/scientists/ZF6s192.jpg" alt="'Floralis Genérica' by Eduardo Catalano: a gigantic metallic flower sculpture with reflective petals" /> ); @@ -103,7 +103,7 @@ export default function Gallery() { function Image() { return ( <img - src="https://i.imgur.com/ZF6s192.jpg" + src="https://react.dev/images/docs/scientists/ZF6s192.jpg" alt="'Floralis Genérica' by Eduardo Catalano: a gigantic metallic flower sculpture with reflective petals" /> ); @@ -124,8 +124,13 @@ img { margin: 0 10px 10px 0; } </Sandpack> +<<<<<<< HEAD * **প্রাথমিক রেন্ডারের সময়,** React `<section>`, `<h1>`, এবং তিনটি `<img>` ট্যাগের জন্য [DOM নোডগুলো তৈরি করবে](https://developer.mozilla.org/docs/Web/API/Document/createElement)। * **রি-রেন্ডারের সময়,** React পূর্ববর্তী রেন্ডার আর বর্তমান রেন্ডারের মধ্যবর্তী পরিবর্তন ক্যালকুলেট করবে। কিন্তু কমিট ধাপের আগ পর্যন্ত React এই তথ্য দিয়ে কিছুই করবে না। +======= +* **During the initial render,** React will [create the DOM nodes](https://developer.mozilla.org/docs/Web/API/Document/createElement) for `<section>`, `<h1>`, and three `<img>` tags. +* **During a re-render,** React will calculate which of their properties, if any, have changed since the previous render. It won't do anything with that information until the next step, the commit phase. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca <Pitfall> diff --git a/src/content/learn/rendering-lists.md b/src/content/learn/rendering-lists.md index 32f81c447..8dfdf0b16 100644 --- a/src/content/learn/rendering-lists.md +++ b/src/content/learn/rendering-lists.md @@ -115,7 +115,7 @@ const people = [{ }, { id: 3, name: 'Percy Lavon Julian', - profession: 'chemist', + profession: 'chemist', }, { id: 4, name: 'Subrahmanyan Chandrasekhar', @@ -223,7 +223,7 @@ export const people = [{ ```js src/utils.js export function getImageUrl(person) { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + 's.jpg' ); @@ -232,9 +232,9 @@ export function getImageUrl(person) { ```css ul { list-style-type: none; padding: 0px 10px; } -li { - margin-bottom: 10px; - display: grid; +li { + margin-bottom: 10px; + display: grid; grid-template-columns: auto 1fr; gap: 20px; align-items: center; @@ -353,7 +353,7 @@ export const people = [{ ```js src/utils.js export function getImageUrl(person) { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + 's.jpg' ); @@ -362,9 +362,9 @@ export function getImageUrl(person) { ```css ul { list-style-type: none; padding: 0px 10px; } -li { - margin-bottom: 10px; - display: grid; +li { + margin-bottom: 10px; + display: grid; grid-template-columns: auto 1fr; gap: 20px; align-items: center; @@ -514,7 +514,7 @@ export const people = [{ ```js src/utils.js export function getImageUrl(person) { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + 's.jpg' ); @@ -629,7 +629,7 @@ export const people = [{ ```js src/utils.js export function getImageUrl(person) { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + 's.jpg' ); @@ -743,7 +743,7 @@ export const people = [{ ```js src/utils.js export function getImageUrl(person) { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + 's.jpg' ); @@ -861,7 +861,7 @@ export const people = [{ ```js src/utils.js export function getImageUrl(person) { return ( - 'https://i.imgur.com/' + + 'https://react.dev/images/docs/scientists/' + person.imageId + 's.jpg' ); diff --git a/src/content/learn/responding-to-events.md b/src/content/learn/responding-to-events.md index 78474217c..1fb554c5e 100644 --- a/src/content/learn/responding-to-events.md +++ b/src/content/learn/responding-to-events.md @@ -169,7 +169,7 @@ This lets these two buttons show different messages. Try changing the messages p ### Passing event handlers as props {/*passing-event-handlers-as-props*/} -Often you'll want the parent component to specify a child's event handler. Consider buttons: depending on where you're using a `Button` component, you might want to execute a different function—perhaps one plays a movie and another uploads an image. +Often you'll want the parent component to specify a child's event handler. Consider buttons: depending on where you're using a `Button` component, you might want to execute a different function—perhaps one plays a movie and another uploads an image. To do this, pass a prop the component receives from its parent as the event handler like so: @@ -313,11 +313,11 @@ button { margin-right: 10px; } </Sandpack> Notice how the `App` component does not need to know *what* `Toolbar` will do with `onPlayMovie` or `onUploadImage`. That's an implementation detail of the `Toolbar`. Here, `Toolbar` passes them down as `onClick` handlers to its `Button`s, but it could later also trigger them on a keyboard shortcut. Naming props after app-specific interactions like `onPlayMovie` gives you the flexibility to change how they're used later. - + <Note> Make sure that you use the appropriate HTML tags for your event handlers. For example, to handle clicks, use [`<button onClick={handleClick}>`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button) instead of `<div onClick={handleClick}>`. Using a real browser `<button>` enables built-in browser behaviors like keyboard navigation. If you don't like the default browser styling of a button and want to make it look more like a link or a different UI element, you can achieve it with CSS. [Learn more about writing accessible markup.](https://developer.mozilla.org/en-US/docs/Learn/Accessibility/HTML) - + </Note> ## Event propagation {/*event-propagation*/} @@ -411,7 +411,7 @@ button { margin: 5px; } When you click on a button: -1. React calls the `onClick` handler passed to `<button>`. +1. React calls the `onClick` handler passed to `<button>`. 2. That handler, defined in `Button`, does the following: * Calls `e.stopPropagation()`, preventing the event from bubbling further. * Calls the `onClick` function, which is a prop passed from the `Toolbar` component. @@ -433,10 +433,10 @@ In rare cases, you might need to catch all events on child elements, *even if th </div> ``` -Each event propagates in three phases: +Each event propagates in three phases: 1. It travels down, calling all `onClickCapture` handlers. -2. It runs the clicked element's `onClick` handler. +2. It runs the clicked element's `onClick` handler. 3. It travels upwards, calling all `onClick` handlers. Capture events are useful for code like routers or analytics, but you probably won't use them in app code. diff --git a/src/content/learn/scaling-up-with-reducer-and-context.md b/src/content/learn/scaling-up-with-reducer-and-context.md index 4556f06f3..7247c79c7 100644 --- a/src/content/learn/scaling-up-with-reducer-and-context.md +++ b/src/content/learn/scaling-up-with-reducer-and-context.md @@ -801,7 +801,7 @@ export default function AddTask() { type: 'added', id: nextId++, text: text, - }); + }); }}>Add</button> </> ); @@ -1025,7 +1025,7 @@ export default function AddTask() { type: 'added', id: nextId++, text: text, - }); + }); }}>Add</button> </> ); @@ -1244,7 +1244,7 @@ export default function AddTask() { type: 'added', id: nextId++, text: text, - }); + }); }}>Add</button> </> ); diff --git a/src/content/learn/sharing-state-between-components.md b/src/content/learn/sharing-state-between-components.md index 52eaf28f8..2fbef8918 100644 --- a/src/content/learn/sharing-state-between-components.md +++ b/src/content/learn/sharing-state-between-components.md @@ -323,7 +323,7 @@ To see what this feels like in practice with a few more components, read [Thinki #### Synced inputs {/*synced-inputs*/} -These two inputs are independent. Make them stay in sync: editing one input should update the other input with the same text, and vice versa. +These two inputs are independent. Make them stay in sync: editing one input should update the other input with the same text, and vice versa. <Hint> @@ -571,7 +571,7 @@ function SearchBar({ query, onChange }) { function List({ items }) { return ( <table> - <tbody> + <tbody> {items.map(food => ( <tr key={food.id}> <td>{food.name}</td> diff --git a/src/content/learn/state-a-components-memory.md b/src/content/learn/state-a-components-memory.md index 8b1f266df..62cf43bea 100644 --- a/src/content/learn/state-a-components-memory.md +++ b/src/content/learn/state-a-components-memory.md @@ -40,14 +40,14 @@ export default function Gallery() { Next </button> <h2> - <i>{sculpture.name} </i> + <i>{sculpture.name} </i> by {sculpture.artist} </h2> - <h3> + <h3> ({index + 1} of {sculptureList.length}) </h3> - <img - src={sculpture.url} + <img + src={sculpture.url} alt={sculpture.alt} /> <p> @@ -63,73 +63,73 @@ export const sculptureList = [{ name: 'Homenaje a la Neurocirugía', artist: 'Marta Colvin Andrade', description: 'Although Colvin is predominantly known for abstract themes that allude to pre-Hispanic symbols, this gigantic sculpture, an homage to neurosurgery, is one of her most recognizable public art pieces.', - url: 'https://i.imgur.com/Mx7dA2Y.jpg', - alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' + url: 'https://react.dev/images/docs/scientists/Mx7dA2Y.jpg', + alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' }, { name: 'Floralis Genérica', artist: 'Eduardo Catalano', description: 'This enormous (75 ft. or 23m) silver flower is located in Buenos Aires. It is designed to move, closing its petals in the evening or when strong winds blow and opening them in the morning.', - url: 'https://i.imgur.com/ZF6s192m.jpg', + url: 'https://react.dev/images/docs/scientists/ZF6s192m.jpg', alt: 'A gigantic metallic flower sculpture with reflective mirror-like petals and strong stamens.' }, { name: 'Eternal Presence', artist: 'John Woodrow Wilson', description: 'Wilson was known for his preoccupation with equality, social justice, as well as the essential and spiritual qualities of humankind. This massive (7ft. or 2,13m) bronze represents what he described as "a symbolic Black presence infused with a sense of universal humanity."', - url: 'https://i.imgur.com/aTtVpES.jpg', + url: 'https://react.dev/images/docs/scientists/aTtVpES.jpg', alt: 'The sculpture depicting a human head seems ever-present and solemn. It radiates calm and serenity.' }, { name: 'Moai', artist: 'Unknown Artist', description: 'Located on the Easter Island, there are 1,000 moai, or extant monumental statues, created by the early Rapa Nui people, which some believe represented deified ancestors.', - url: 'https://i.imgur.com/RCwLEoQm.jpg', + url: 'https://react.dev/images/docs/scientists/RCwLEoQm.jpg', alt: 'Three monumental stone busts with the heads that are disproportionately large with somber faces.' }, { name: 'Blue Nana', artist: 'Niki de Saint Phalle', description: 'The Nanas are triumphant creatures, symbols of femininity and maternity. Initially, Saint Phalle used fabric and found objects for the Nanas, and later on introduced polyester to achieve a more vibrant effect.', - url: 'https://i.imgur.com/Sd1AgUOm.jpg', + url: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', alt: 'A large mosaic sculpture of a whimsical dancing female figure in a colorful costume emanating joy.' }, { name: 'Ultimate Form', artist: 'Barbara Hepworth', description: 'This abstract bronze sculpture is a part of The Family of Man series located at Yorkshire Sculpture Park. Hepworth chose not to create literal representations of the world but developed abstract forms inspired by people and landscapes.', - url: 'https://i.imgur.com/2heNQDcm.jpg', + url: 'https://react.dev/images/docs/scientists/2heNQDcm.jpg', alt: 'A tall sculpture made of three elements stacked on each other reminding of a human figure.' }, { name: 'Cavaliere', artist: 'Lamidi Olonade Fakeye', description: "Descended from four generations of woodcarvers, Fakeye's work blended traditional and contemporary Yoruba themes.", - url: 'https://i.imgur.com/wIdGuZwm.png', + url: 'https://react.dev/images/docs/scientists/wIdGuZwm.png', alt: 'An intricate wood sculpture of a warrior with a focused face on a horse adorned with patterns.' }, { name: 'Big Bellies', artist: 'Alina Szapocznikow', description: "Szapocznikow is known for her sculptures of the fragmented body as a metaphor for the fragility and impermanence of youth and beauty. This sculpture depicts two very realistic large bellies stacked on top of each other, each around five feet (1,5m) tall.", - url: 'https://i.imgur.com/AlHTAdDm.jpg', + url: 'https://react.dev/images/docs/scientists/AlHTAdDm.jpg', alt: 'The sculpture reminds a cascade of folds, quite different from bellies in classical sculptures.' }, { name: 'Terracotta Army', artist: 'Unknown Artist', description: 'The Terracotta Army is a collection of terracotta sculptures depicting the armies of Qin Shi Huang, the first Emperor of China. The army consisted of more than 8,000 soldiers, 130 chariots with 520 horses, and 150 cavalry horses.', - url: 'https://i.imgur.com/HMFmH6m.jpg', + url: 'https://react.dev/images/docs/scientists/HMFmH6m.jpg', alt: '12 terracotta sculptures of solemn warriors, each with a unique facial expression and armor.' }, { name: 'Lunar Landscape', artist: 'Louise Nevelson', description: 'Nevelson was known for scavenging objects from New York City debris, which she would later assemble into monumental constructions. In this one, she used disparate parts like a bedpost, juggling pin, and seat fragment, nailing and gluing them into boxes that reflect the influence of Cubism’s geometric abstraction of space and form.', - url: 'https://i.imgur.com/rN7hY6om.jpg', + url: 'https://react.dev/images/docs/scientists/rN7hY6om.jpg', alt: 'A black matte sculpture where the individual elements are initially indistinguishable.' }, { name: 'Aureole', artist: 'Ranjani Shettar', description: 'Shettar merges the traditional and the modern, the natural and the industrial. Her art focuses on the relationship between man and nature. Her work was described as compelling both abstractly and figuratively, gravity defying, and a "fine synthesis of unlikely materials."', - url: 'https://i.imgur.com/okTpbHhm.jpg', + url: 'https://react.dev/images/docs/scientists/okTpbHhm.jpg', alt: 'A pale wire-like sculpture mounted on concrete wall and descending on the floor. It appears light.' }, { name: 'Hippos', artist: 'Taipei Zoo', description: 'The Taipei Zoo commissioned a Hippo Square featuring submerged hippos at play.', - url: 'https://i.imgur.com/6o5Vuyu.jpg', + url: 'https://react.dev/images/docs/scientists/6o5Vuyu.jpg', alt: 'A group of bronze hippo sculptures emerging from the sett sidewalk as if they were swimming.' }]; ``` @@ -220,14 +220,14 @@ export default function Gallery() { Next </button> <h2> - <i>{sculpture.name} </i> + <i>{sculpture.name} </i> by {sculpture.artist} </h2> - <h3> + <h3> ({index + 1} of {sculptureList.length}) </h3> - <img - src={sculpture.url} + <img + src={sculpture.url} alt={sculpture.alt} /> <p> @@ -243,73 +243,73 @@ export const sculptureList = [{ name: 'Homenaje a la Neurocirugía', artist: 'Marta Colvin Andrade', description: 'Although Colvin is predominantly known for abstract themes that allude to pre-Hispanic symbols, this gigantic sculpture, an homage to neurosurgery, is one of her most recognizable public art pieces.', - url: 'https://i.imgur.com/Mx7dA2Y.jpg', - alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' + url: 'https://react.dev/images/docs/scientists/Mx7dA2Y.jpg', + alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' }, { name: 'Floralis Genérica', artist: 'Eduardo Catalano', description: 'This enormous (75 ft. or 23m) silver flower is located in Buenos Aires. It is designed to move, closing its petals in the evening or when strong winds blow and opening them in the morning.', - url: 'https://i.imgur.com/ZF6s192m.jpg', + url: 'https://react.dev/images/docs/scientists/ZF6s192m.jpg', alt: 'A gigantic metallic flower sculpture with reflective mirror-like petals and strong stamens.' }, { name: 'Eternal Presence', artist: 'John Woodrow Wilson', description: 'Wilson was known for his preoccupation with equality, social justice, as well as the essential and spiritual qualities of humankind. This massive (7ft. or 2,13m) bronze represents what he described as "a symbolic Black presence infused with a sense of universal humanity."', - url: 'https://i.imgur.com/aTtVpES.jpg', + url: 'https://react.dev/images/docs/scientists/aTtVpES.jpg', alt: 'The sculpture depicting a human head seems ever-present and solemn. It radiates calm and serenity.' }, { name: 'Moai', artist: 'Unknown Artist', description: 'Located on the Easter Island, there are 1,000 moai, or extant monumental statues, created by the early Rapa Nui people, which some believe represented deified ancestors.', - url: 'https://i.imgur.com/RCwLEoQm.jpg', + url: 'https://react.dev/images/docs/scientists/RCwLEoQm.jpg', alt: 'Three monumental stone busts with the heads that are disproportionately large with somber faces.' }, { name: 'Blue Nana', artist: 'Niki de Saint Phalle', description: 'The Nanas are triumphant creatures, symbols of femininity and maternity. Initially, Saint Phalle used fabric and found objects for the Nanas, and later on introduced polyester to achieve a more vibrant effect.', - url: 'https://i.imgur.com/Sd1AgUOm.jpg', + url: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', alt: 'A large mosaic sculpture of a whimsical dancing female figure in a colorful costume emanating joy.' }, { name: 'Ultimate Form', artist: 'Barbara Hepworth', description: 'This abstract bronze sculpture is a part of The Family of Man series located at Yorkshire Sculpture Park. Hepworth chose not to create literal representations of the world but developed abstract forms inspired by people and landscapes.', - url: 'https://i.imgur.com/2heNQDcm.jpg', + url: 'https://react.dev/images/docs/scientists/2heNQDcm.jpg', alt: 'A tall sculpture made of three elements stacked on each other reminding of a human figure.' }, { name: 'Cavaliere', artist: 'Lamidi Olonade Fakeye', description: "Descended from four generations of woodcarvers, Fakeye's work blended traditional and contemporary Yoruba themes.", - url: 'https://i.imgur.com/wIdGuZwm.png', + url: 'https://react.dev/images/docs/scientists/wIdGuZwm.png', alt: 'An intricate wood sculpture of a warrior with a focused face on a horse adorned with patterns.' }, { name: 'Big Bellies', artist: 'Alina Szapocznikow', description: "Szapocznikow is known for her sculptures of the fragmented body as a metaphor for the fragility and impermanence of youth and beauty. This sculpture depicts two very realistic large bellies stacked on top of each other, each around five feet (1,5m) tall.", - url: 'https://i.imgur.com/AlHTAdDm.jpg', + url: 'https://react.dev/images/docs/scientists/AlHTAdDm.jpg', alt: 'The sculpture reminds a cascade of folds, quite different from bellies in classical sculptures.' }, { name: 'Terracotta Army', artist: 'Unknown Artist', description: 'The Terracotta Army is a collection of terracotta sculptures depicting the armies of Qin Shi Huang, the first Emperor of China. The army consisted of more than 8,000 soldiers, 130 chariots with 520 horses, and 150 cavalry horses.', - url: 'https://i.imgur.com/HMFmH6m.jpg', + url: 'https://react.dev/images/docs/scientists/HMFmH6m.jpg', alt: '12 terracotta sculptures of solemn warriors, each with a unique facial expression and armor.' }, { name: 'Lunar Landscape', artist: 'Louise Nevelson', description: 'Nevelson was known for scavenging objects from New York City debris, which she would later assemble into monumental constructions. In this one, she used disparate parts like a bedpost, juggling pin, and seat fragment, nailing and gluing them into boxes that reflect the influence of Cubism’s geometric abstraction of space and form.', - url: 'https://i.imgur.com/rN7hY6om.jpg', + url: 'https://react.dev/images/docs/scientists/rN7hY6om.jpg', alt: 'A black matte sculpture where the individual elements are initially indistinguishable.' }, { name: 'Aureole', artist: 'Ranjani Shettar', description: 'Shettar merges the traditional and the modern, the natural and the industrial. Her art focuses on the relationship between man and nature. Her work was described as compelling both abstractly and figuratively, gravity defying, and a "fine synthesis of unlikely materials."', - url: 'https://i.imgur.com/okTpbHhm.jpg', + url: 'https://react.dev/images/docs/scientists/okTpbHhm.jpg', alt: 'A pale wire-like sculpture mounted on concrete wall and descending on the floor. It appears light.' }, { name: 'Hippos', artist: 'Taipei Zoo', description: 'The Taipei Zoo commissioned a Hippo Square featuring submerged hippos at play.', - url: 'https://i.imgur.com/6o5Vuyu.jpg', + url: 'https://react.dev/images/docs/scientists/6o5Vuyu.jpg', alt: 'A group of bronze hippo sculptures emerging from the sett sidewalk as if they were swimming.' }]; ``` @@ -360,7 +360,11 @@ const [index, setIndex] = useState(0); </Note> +<<<<<<< HEAD `useState` এর একমাত্র আর্গুমেন্ট হচ্ছে আপনার state ভ্যারিয়েবলের **initial value**। এই উদাহরণে, `index` এর initial value `useState(0)` দিয়ে `0` তে সেট করা। +======= +The only argument to `useState` is the **initial value** of your state variable. In this example, the `index`'s initial value is set to `0` with `useState(0)`. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca প্রতিবার যখন আপনার কম্পোনেন্ট রেন্ডার হয়, `useState` আপনাকে দুটি মান সহ একটি অ্যারে দেয়ঃ @@ -407,18 +411,18 @@ export default function Gallery() { Next </button> <h2> - <i>{sculpture.name} </i> + <i>{sculpture.name} </i> by {sculpture.artist} </h2> - <h3> + <h3> ({index + 1} of {sculptureList.length}) </h3> <button onClick={handleMoreClick}> {showMore ? 'Hide' : 'Show'} details </button> {showMore && <p>{sculpture.description}</p>} - <img - src={sculpture.url} + <img + src={sculpture.url} alt={sculpture.alt} /> </> @@ -431,73 +435,73 @@ export const sculptureList = [{ name: 'Homenaje a la Neurocirugía', artist: 'Marta Colvin Andrade', description: 'Although Colvin is predominantly known for abstract themes that allude to pre-Hispanic symbols, this gigantic sculpture, an homage to neurosurgery, is one of her most recognizable public art pieces.', - url: 'https://i.imgur.com/Mx7dA2Y.jpg', - alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' + url: 'https://react.dev/images/docs/scientists/Mx7dA2Y.jpg', + alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' }, { name: 'Floralis Genérica', artist: 'Eduardo Catalano', description: 'This enormous (75 ft. or 23m) silver flower is located in Buenos Aires. It is designed to move, closing its petals in the evening or when strong winds blow and opening them in the morning.', - url: 'https://i.imgur.com/ZF6s192m.jpg', + url: 'https://react.dev/images/docs/scientists/ZF6s192m.jpg', alt: 'A gigantic metallic flower sculpture with reflective mirror-like petals and strong stamens.' }, { name: 'Eternal Presence', artist: 'John Woodrow Wilson', description: 'Wilson was known for his preoccupation with equality, social justice, as well as the essential and spiritual qualities of humankind. This massive (7ft. or 2,13m) bronze represents what he described as "a symbolic Black presence infused with a sense of universal humanity."', - url: 'https://i.imgur.com/aTtVpES.jpg', + url: 'https://react.dev/images/docs/scientists/aTtVpES.jpg', alt: 'The sculpture depicting a human head seems ever-present and solemn. It radiates calm and serenity.' }, { name: 'Moai', artist: 'Unknown Artist', description: 'Located on the Easter Island, there are 1,000 moai, or extant monumental statues, created by the early Rapa Nui people, which some believe represented deified ancestors.', - url: 'https://i.imgur.com/RCwLEoQm.jpg', + url: 'https://react.dev/images/docs/scientists/RCwLEoQm.jpg', alt: 'Three monumental stone busts with the heads that are disproportionately large with somber faces.' }, { name: 'Blue Nana', artist: 'Niki de Saint Phalle', description: 'The Nanas are triumphant creatures, symbols of femininity and maternity. Initially, Saint Phalle used fabric and found objects for the Nanas, and later on introduced polyester to achieve a more vibrant effect.', - url: 'https://i.imgur.com/Sd1AgUOm.jpg', + url: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', alt: 'A large mosaic sculpture of a whimsical dancing female figure in a colorful costume emanating joy.' }, { name: 'Ultimate Form', artist: 'Barbara Hepworth', description: 'This abstract bronze sculpture is a part of The Family of Man series located at Yorkshire Sculpture Park. Hepworth chose not to create literal representations of the world but developed abstract forms inspired by people and landscapes.', - url: 'https://i.imgur.com/2heNQDcm.jpg', + url: 'https://react.dev/images/docs/scientists/2heNQDcm.jpg', alt: 'A tall sculpture made of three elements stacked on each other reminding of a human figure.' }, { name: 'Cavaliere', artist: 'Lamidi Olonade Fakeye', description: "Descended from four generations of woodcarvers, Fakeye's work blended traditional and contemporary Yoruba themes.", - url: 'https://i.imgur.com/wIdGuZwm.png', + url: 'https://react.dev/images/docs/scientists/wIdGuZwm.png', alt: 'An intricate wood sculpture of a warrior with a focused face on a horse adorned with patterns.' }, { name: 'Big Bellies', artist: 'Alina Szapocznikow', description: "Szapocznikow is known for her sculptures of the fragmented body as a metaphor for the fragility and impermanence of youth and beauty. This sculpture depicts two very realistic large bellies stacked on top of each other, each around five feet (1,5m) tall.", - url: 'https://i.imgur.com/AlHTAdDm.jpg', + url: 'https://react.dev/images/docs/scientists/AlHTAdDm.jpg', alt: 'The sculpture reminds a cascade of folds, quite different from bellies in classical sculptures.' }, { name: 'Terracotta Army', artist: 'Unknown Artist', description: 'The Terracotta Army is a collection of terracotta sculptures depicting the armies of Qin Shi Huang, the first Emperor of China. The army consisted of more than 8,000 soldiers, 130 chariots with 520 horses, and 150 cavalry horses.', - url: 'https://i.imgur.com/HMFmH6m.jpg', + url: 'https://react.dev/images/docs/scientists/HMFmH6m.jpg', alt: '12 terracotta sculptures of solemn warriors, each with a unique facial expression and armor.' }, { name: 'Lunar Landscape', artist: 'Louise Nevelson', description: 'Nevelson was known for scavenging objects from New York City debris, which she would later assemble into monumental constructions. In this one, she used disparate parts like a bedpost, juggling pin, and seat fragment, nailing and gluing them into boxes that reflect the influence of Cubism’s geometric abstraction of space and form.', - url: 'https://i.imgur.com/rN7hY6om.jpg', + url: 'https://react.dev/images/docs/scientists/rN7hY6om.jpg', alt: 'A black matte sculpture where the individual elements are initially indistinguishable.' }, { name: 'Aureole', artist: 'Ranjani Shettar', description: 'Shettar merges the traditional and the modern, the natural and the industrial. Her art focuses on the relationship between man and nature. Her work was described as compelling both abstractly and figuratively, gravity defying, and a "fine synthesis of unlikely materials."', - url: 'https://i.imgur.com/okTpbHhm.jpg', + url: 'https://react.dev/images/docs/scientists/okTpbHhm.jpg', alt: 'A pale wire-like sculpture mounted on concrete wall and descending on the floor. It appears light.' }, { name: 'Hippos', artist: 'Taipei Zoo', description: 'The Taipei Zoo commissioned a Hippo Square featuring submerged hippos at play.', - url: 'https://i.imgur.com/6o5Vuyu.jpg', + url: 'https://react.dev/images/docs/scientists/6o5Vuyu.jpg', alt: 'A group of bronze hippo sculptures emerging from the sett sidewalk as if they were swimming.' }]; ``` @@ -627,73 +631,73 @@ let sculptureList = [{ name: 'Homenaje a la Neurocirugía', artist: 'Marta Colvin Andrade', description: 'Although Colvin is predominantly known for abstract themes that allude to pre-Hispanic symbols, this gigantic sculpture, an homage to neurosurgery, is one of her most recognizable public art pieces.', - url: 'https://i.imgur.com/Mx7dA2Y.jpg', - alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' + url: 'https://react.dev/images/docs/scientists/Mx7dA2Y.jpg', + alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' }, { name: 'Floralis Genérica', artist: 'Eduardo Catalano', description: 'This enormous (75 ft. or 23m) silver flower is located in Buenos Aires. It is designed to move, closing its petals in the evening or when strong winds blow and opening them in the morning.', - url: 'https://i.imgur.com/ZF6s192m.jpg', + url: 'https://react.dev/images/docs/scientists/ZF6s192m.jpg', alt: 'A gigantic metallic flower sculpture with reflective mirror-like petals and strong stamens.' }, { name: 'Eternal Presence', artist: 'John Woodrow Wilson', description: 'Wilson was known for his preoccupation with equality, social justice, as well as the essential and spiritual qualities of humankind. This massive (7ft. or 2,13m) bronze represents what he described as "a symbolic Black presence infused with a sense of universal humanity."', - url: 'https://i.imgur.com/aTtVpES.jpg', + url: 'https://react.dev/images/docs/scientists/aTtVpES.jpg', alt: 'The sculpture depicting a human head seems ever-present and solemn. It radiates calm and serenity.' }, { name: 'Moai', artist: 'Unknown Artist', description: 'Located on the Easter Island, there are 1,000 moai, or extant monumental statues, created by the early Rapa Nui people, which some believe represented deified ancestors.', - url: 'https://i.imgur.com/RCwLEoQm.jpg', + url: 'https://react.dev/images/docs/scientists/RCwLEoQm.jpg', alt: 'Three monumental stone busts with the heads that are disproportionately large with somber faces.' }, { name: 'Blue Nana', artist: 'Niki de Saint Phalle', description: 'The Nanas are triumphant creatures, symbols of femininity and maternity. Initially, Saint Phalle used fabric and found objects for the Nanas, and later on introduced polyester to achieve a more vibrant effect.', - url: 'https://i.imgur.com/Sd1AgUOm.jpg', + url: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', alt: 'A large mosaic sculpture of a whimsical dancing female figure in a colorful costume emanating joy.' }, { name: 'Ultimate Form', artist: 'Barbara Hepworth', description: 'This abstract bronze sculpture is a part of The Family of Man series located at Yorkshire Sculpture Park. Hepworth chose not to create literal representations of the world but developed abstract forms inspired by people and landscapes.', - url: 'https://i.imgur.com/2heNQDcm.jpg', + url: 'https://react.dev/images/docs/scientists/2heNQDcm.jpg', alt: 'A tall sculpture made of three elements stacked on each other reminding of a human figure.' }, { name: 'Cavaliere', artist: 'Lamidi Olonade Fakeye', description: "Descended from four generations of woodcarvers, Fakeye's work blended traditional and contemporary Yoruba themes.", - url: 'https://i.imgur.com/wIdGuZwm.png', + url: 'https://react.dev/images/docs/scientists/wIdGuZwm.png', alt: 'An intricate wood sculpture of a warrior with a focused face on a horse adorned with patterns.' }, { name: 'Big Bellies', artist: 'Alina Szapocznikow', description: "Szapocznikow is known for her sculptures of the fragmented body as a metaphor for the fragility and impermanence of youth and beauty. This sculpture depicts two very realistic large bellies stacked on top of each other, each around five feet (1,5m) tall.", - url: 'https://i.imgur.com/AlHTAdDm.jpg', + url: 'https://react.dev/images/docs/scientists/AlHTAdDm.jpg', alt: 'The sculpture reminds a cascade of folds, quite different from bellies in classical sculptures.' }, { name: 'Terracotta Army', artist: 'Unknown Artist', description: 'The Terracotta Army is a collection of terracotta sculptures depicting the armies of Qin Shi Huang, the first Emperor of China. The army consisted of more than 8,000 soldiers, 130 chariots with 520 horses, and 150 cavalry horses.', - url: 'https://i.imgur.com/HMFmH6m.jpg', + url: 'https://react.dev/images/docs/scientists/HMFmH6m.jpg', alt: '12 terracotta sculptures of solemn warriors, each with a unique facial expression and armor.' }, { name: 'Lunar Landscape', artist: 'Louise Nevelson', description: 'Nevelson was known for scavenging objects from New York City debris, which she would later assemble into monumental constructions. In this one, she used disparate parts like a bedpost, juggling pin, and seat fragment, nailing and gluing them into boxes that reflect the influence of Cubism’s geometric abstraction of space and form.', - url: 'https://i.imgur.com/rN7hY6om.jpg', + url: 'https://react.dev/images/docs/scientists/rN7hY6om.jpg', alt: 'A black matte sculpture where the individual elements are initially indistinguishable.' }, { name: 'Aureole', artist: 'Ranjani Shettar', description: 'Shettar merges the traditional and the modern, the natural and the industrial. Her art focuses on the relationship between man and nature. Her work was described as compelling both abstractly and figuratively, gravity defying, and a "fine synthesis of unlikely materials."', - url: 'https://i.imgur.com/okTpbHhm.jpg', + url: 'https://react.dev/images/docs/scientists/okTpbHhm.jpg', alt: 'A pale wire-like sculpture mounted on concrete wall and descending on the floor. It appears light.' }, { name: 'Hippos', artist: 'Taipei Zoo', description: 'The Taipei Zoo commissioned a Hippo Square featuring submerged hippos at play.', - url: 'https://i.imgur.com/6o5Vuyu.jpg', + url: 'https://react.dev/images/docs/scientists/6o5Vuyu.jpg', alt: 'A group of bronze hippo sculptures emerging from the sett sidewalk as if they were swimming.' }]; @@ -772,18 +776,18 @@ export default function Gallery() { Next </button> <h2> - <i>{sculpture.name} </i> + <i>{sculpture.name} </i> by {sculpture.artist} </h2> - <h3> + <h3> ({index + 1} of {sculptureList.length}) </h3> <button onClick={handleMoreClick}> {showMore ? 'Hide' : 'Show'} details </button> {showMore && <p>{sculpture.description}</p>} - <img - src={sculpture.url} + <img + src={sculpture.url} alt={sculpture.alt} /> </section> @@ -796,73 +800,73 @@ export const sculptureList = [{ name: 'Homenaje a la Neurocirugía', artist: 'Marta Colvin Andrade', description: 'Although Colvin is predominantly known for abstract themes that allude to pre-Hispanic symbols, this gigantic sculpture, an homage to neurosurgery, is one of her most recognizable public art pieces.', - url: 'https://i.imgur.com/Mx7dA2Y.jpg', - alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' + url: 'https://react.dev/images/docs/scientists/Mx7dA2Y.jpg', + alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' }, { name: 'Floralis Genérica', artist: 'Eduardo Catalano', description: 'This enormous (75 ft. or 23m) silver flower is located in Buenos Aires. It is designed to move, closing its petals in the evening or when strong winds blow and opening them in the morning.', - url: 'https://i.imgur.com/ZF6s192m.jpg', + url: 'https://react.dev/images/docs/scientists/ZF6s192m.jpg', alt: 'A gigantic metallic flower sculpture with reflective mirror-like petals and strong stamens.' }, { name: 'Eternal Presence', artist: 'John Woodrow Wilson', description: 'Wilson was known for his preoccupation with equality, social justice, as well as the essential and spiritual qualities of humankind. This massive (7ft. or 2,13m) bronze represents what he described as "a symbolic Black presence infused with a sense of universal humanity."', - url: 'https://i.imgur.com/aTtVpES.jpg', + url: 'https://react.dev/images/docs/scientists/aTtVpES.jpg', alt: 'The sculpture depicting a human head seems ever-present and solemn. It radiates calm and serenity.' }, { name: 'Moai', artist: 'Unknown Artist', description: 'Located on the Easter Island, there are 1,000 moai, or extant monumental statues, created by the early Rapa Nui people, which some believe represented deified ancestors.', - url: 'https://i.imgur.com/RCwLEoQm.jpg', + url: 'https://react.dev/images/docs/scientists/RCwLEoQm.jpg', alt: 'Three monumental stone busts with the heads that are disproportionately large with somber faces.' }, { name: 'Blue Nana', artist: 'Niki de Saint Phalle', description: 'The Nanas are triumphant creatures, symbols of femininity and maternity. Initially, Saint Phalle used fabric and found objects for the Nanas, and later on introduced polyester to achieve a more vibrant effect.', - url: 'https://i.imgur.com/Sd1AgUOm.jpg', + url: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', alt: 'A large mosaic sculpture of a whimsical dancing female figure in a colorful costume emanating joy.' }, { name: 'Ultimate Form', artist: 'Barbara Hepworth', description: 'This abstract bronze sculpture is a part of The Family of Man series located at Yorkshire Sculpture Park. Hepworth chose not to create literal representations of the world but developed abstract forms inspired by people and landscapes.', - url: 'https://i.imgur.com/2heNQDcm.jpg', + url: 'https://react.dev/images/docs/scientists/2heNQDcm.jpg', alt: 'A tall sculpture made of three elements stacked on each other reminding of a human figure.' }, { name: 'Cavaliere', artist: 'Lamidi Olonade Fakeye', description: "Descended from four generations of woodcarvers, Fakeye's work blended traditional and contemporary Yoruba themes.", - url: 'https://i.imgur.com/wIdGuZwm.png', + url: 'https://react.dev/images/docs/scientists/wIdGuZwm.png', alt: 'An intricate wood sculpture of a warrior with a focused face on a horse adorned with patterns.' }, { name: 'Big Bellies', artist: 'Alina Szapocznikow', description: "Szapocznikow is known for her sculptures of the fragmented body as a metaphor for the fragility and impermanence of youth and beauty. This sculpture depicts two very realistic large bellies stacked on top of each other, each around five feet (1,5m) tall.", - url: 'https://i.imgur.com/AlHTAdDm.jpg', + url: 'https://react.dev/images/docs/scientists/AlHTAdDm.jpg', alt: 'The sculpture reminds a cascade of folds, quite different from bellies in classical sculptures.' }, { name: 'Terracotta Army', artist: 'Unknown Artist', description: 'The Terracotta Army is a collection of terracotta sculptures depicting the armies of Qin Shi Huang, the first Emperor of China. The army consisted of more than 8,000 soldiers, 130 chariots with 520 horses, and 150 cavalry horses.', - url: 'https://i.imgur.com/HMFmH6m.jpg', + url: 'https://react.dev/images/docs/scientists/HMFmH6m.jpg', alt: '12 terracotta sculptures of solemn warriors, each with a unique facial expression and armor.' }, { name: 'Lunar Landscape', artist: 'Louise Nevelson', description: 'Nevelson was known for scavenging objects from New York City debris, which she would later assemble into monumental constructions. In this one, she used disparate parts like a bedpost, juggling pin, and seat fragment, nailing and gluing them into boxes that reflect the influence of Cubism’s geometric abstraction of space and form.', - url: 'https://i.imgur.com/rN7hY6om.jpg', + url: 'https://react.dev/images/docs/scientists/rN7hY6om.jpg', alt: 'A black matte sculpture where the individual elements are initially indistinguishable.' }, { name: 'Aureole', artist: 'Ranjani Shettar', description: 'Shettar merges the traditional and the modern, the natural and the industrial. Her art focuses on the relationship between man and nature. Her work was described as compelling both abstractly and figuratively, gravity defying, and a "fine synthesis of unlikely materials."', - url: 'https://i.imgur.com/okTpbHhm.jpg', + url: 'https://react.dev/images/docs/scientists/okTpbHhm.jpg', alt: 'A pale wire-like sculpture mounted on concrete wall and descending on the floor. It appears light.' }, { name: 'Hippos', artist: 'Taipei Zoo', description: 'The Taipei Zoo commissioned a Hippo Square featuring submerged hippos at play.', - url: 'https://i.imgur.com/6o5Vuyu.jpg', + url: 'https://react.dev/images/docs/scientists/6o5Vuyu.jpg', alt: 'A group of bronze hippo sculptures emerging from the sett sidewalk as if they were swimming.' }]; ``` @@ -943,18 +947,18 @@ export default function Gallery() { Next </button> <h2> - <i>{sculpture.name} </i> + <i>{sculpture.name} </i> by {sculpture.artist} </h2> - <h3> + <h3> ({index + 1} of {sculptureList.length}) </h3> <button onClick={handleMoreClick}> {showMore ? 'Hide' : 'Show'} details </button> {showMore && <p>{sculpture.description}</p>} - <img - src={sculpture.url} + <img + src={sculpture.url} alt={sculpture.alt} /> </> @@ -967,73 +971,73 @@ export const sculptureList = [{ name: 'Homenaje a la Neurocirugía', artist: 'Marta Colvin Andrade', description: 'Although Colvin is predominantly known for abstract themes that allude to pre-Hispanic symbols, this gigantic sculpture, an homage to neurosurgery, is one of her most recognizable public art pieces.', - url: 'https://i.imgur.com/Mx7dA2Y.jpg', - alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' + url: 'https://react.dev/images/docs/scientists/Mx7dA2Y.jpg', + alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' }, { name: 'Floralis Genérica', artist: 'Eduardo Catalano', description: 'This enormous (75 ft. or 23m) silver flower is located in Buenos Aires. It is designed to move, closing its petals in the evening or when strong winds blow and opening them in the morning.', - url: 'https://i.imgur.com/ZF6s192m.jpg', + url: 'https://react.dev/images/docs/scientists/ZF6s192m.jpg', alt: 'A gigantic metallic flower sculpture with reflective mirror-like petals and strong stamens.' }, { name: 'Eternal Presence', artist: 'John Woodrow Wilson', description: 'Wilson was known for his preoccupation with equality, social justice, as well as the essential and spiritual qualities of humankind. This massive (7ft. or 2,13m) bronze represents what he described as "a symbolic Black presence infused with a sense of universal humanity."', - url: 'https://i.imgur.com/aTtVpES.jpg', + url: 'https://react.dev/images/docs/scientists/aTtVpES.jpg', alt: 'The sculpture depicting a human head seems ever-present and solemn. It radiates calm and serenity.' }, { name: 'Moai', artist: 'Unknown Artist', description: 'Located on the Easter Island, there are 1,000 moai, or extant monumental statues, created by the early Rapa Nui people, which some believe represented deified ancestors.', - url: 'https://i.imgur.com/RCwLEoQm.jpg', + url: 'https://react.dev/images/docs/scientists/RCwLEoQm.jpg', alt: 'Three monumental stone busts with the heads that are disproportionately large with somber faces.' }, { name: 'Blue Nana', artist: 'Niki de Saint Phalle', description: 'The Nanas are triumphant creatures, symbols of femininity and maternity. Initially, Saint Phalle used fabric and found objects for the Nanas, and later on introduced polyester to achieve a more vibrant effect.', - url: 'https://i.imgur.com/Sd1AgUOm.jpg', + url: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', alt: 'A large mosaic sculpture of a whimsical dancing female figure in a colorful costume emanating joy.' }, { name: 'Ultimate Form', artist: 'Barbara Hepworth', description: 'This abstract bronze sculpture is a part of The Family of Man series located at Yorkshire Sculpture Park. Hepworth chose not to create literal representations of the world but developed abstract forms inspired by people and landscapes.', - url: 'https://i.imgur.com/2heNQDcm.jpg', + url: 'https://react.dev/images/docs/scientists/2heNQDcm.jpg', alt: 'A tall sculpture made of three elements stacked on each other reminding of a human figure.' }, { name: 'Cavaliere', artist: 'Lamidi Olonade Fakeye', description: "Descended from four generations of woodcarvers, Fakeye's work blended traditional and contemporary Yoruba themes.", - url: 'https://i.imgur.com/wIdGuZwm.png', + url: 'https://react.dev/images/docs/scientists/wIdGuZwm.png', alt: 'An intricate wood sculpture of a warrior with a focused face on a horse adorned with patterns.' }, { name: 'Big Bellies', artist: 'Alina Szapocznikow', description: "Szapocznikow is known for her sculptures of the fragmented body as a metaphor for the fragility and impermanence of youth and beauty. This sculpture depicts two very realistic large bellies stacked on top of each other, each around five feet (1,5m) tall.", - url: 'https://i.imgur.com/AlHTAdDm.jpg', + url: 'https://react.dev/images/docs/scientists/AlHTAdDm.jpg', alt: 'The sculpture reminds a cascade of folds, quite different from bellies in classical sculptures.' }, { name: 'Terracotta Army', artist: 'Unknown Artist', description: 'The Terracotta Army is a collection of terracotta sculptures depicting the armies of Qin Shi Huang, the first Emperor of China. The army consisted of more than 8,000 soldiers, 130 chariots with 520 horses, and 150 cavalry horses.', - url: 'https://i.imgur.com/HMFmH6m.jpg', + url: 'https://react.dev/images/docs/scientists/HMFmH6m.jpg', alt: '12 terracotta sculptures of solemn warriors, each with a unique facial expression and armor.' }, { name: 'Lunar Landscape', artist: 'Louise Nevelson', description: 'Nevelson was known for scavenging objects from New York City debris, which she would later assemble into monumental constructions. In this one, she used disparate parts like a bedpost, juggling pin, and seat fragment, nailing and gluing them into boxes that reflect the influence of Cubism’s geometric abstraction of space and form.', - url: 'https://i.imgur.com/rN7hY6om.jpg', + url: 'https://react.dev/images/docs/scientists/rN7hY6om.jpg', alt: 'A black matte sculpture where the individual elements are initially indistinguishable.' }, { name: 'Aureole', artist: 'Ranjani Shettar', description: 'Shettar merges the traditional and the modern, the natural and the industrial. Her art focuses on the relationship between man and nature. Her work was described as compelling both abstractly and figuratively, gravity defying, and a "fine synthesis of unlikely materials."', - url: 'https://i.imgur.com/okTpbHhm.jpg', + url: 'https://react.dev/images/docs/scientists/okTpbHhm.jpg', alt: 'A pale wire-like sculpture mounted on concrete wall and descending on the floor. It appears light.' }, { name: 'Hippos', artist: 'Taipei Zoo', description: 'The Taipei Zoo commissioned a Hippo Square featuring submerged hippos at play.', - url: 'https://i.imgur.com/6o5Vuyu.jpg', + url: 'https://react.dev/images/docs/scientists/6o5Vuyu.jpg', alt: 'A group of bronze hippo sculptures emerging from the sett sidewalk as if they were swimming.' }]; ``` @@ -1105,18 +1109,18 @@ export default function Gallery() { Next </button> <h2> - <i>{sculpture.name} </i> + <i>{sculpture.name} </i> by {sculpture.artist} </h2> - <h3> + <h3> ({index + 1} of {sculptureList.length}) </h3> <button onClick={handleMoreClick}> {showMore ? 'Hide' : 'Show'} details </button> {showMore && <p>{sculpture.description}</p>} - <img - src={sculpture.url} + <img + src={sculpture.url} alt={sculpture.alt} /> </> @@ -1129,73 +1133,73 @@ export const sculptureList = [{ name: 'Homenaje a la Neurocirugía', artist: 'Marta Colvin Andrade', description: 'Although Colvin is predominantly known for abstract themes that allude to pre-Hispanic symbols, this gigantic sculpture, an homage to neurosurgery, is one of her most recognizable public art pieces.', - url: 'https://i.imgur.com/Mx7dA2Y.jpg', - alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' + url: 'https://react.dev/images/docs/scientists/Mx7dA2Y.jpg', + alt: 'A bronze statue of two crossed hands delicately holding a human brain in their fingertips.' }, { name: 'Floralis Genérica', artist: 'Eduardo Catalano', description: 'This enormous (75 ft. or 23m) silver flower is located in Buenos Aires. It is designed to move, closing its petals in the evening or when strong winds blow and opening them in the morning.', - url: 'https://i.imgur.com/ZF6s192m.jpg', + url: 'https://react.dev/images/docs/scientists/ZF6s192m.jpg', alt: 'A gigantic metallic flower sculpture with reflective mirror-like petals and strong stamens.' }, { name: 'Eternal Presence', artist: 'John Woodrow Wilson', description: 'Wilson was known for his preoccupation with equality, social justice, as well as the essential and spiritual qualities of humankind. This massive (7ft. or 2,13m) bronze represents what he described as "a symbolic Black presence infused with a sense of universal humanity."', - url: 'https://i.imgur.com/aTtVpES.jpg', + url: 'https://react.dev/images/docs/scientists/aTtVpES.jpg', alt: 'The sculpture depicting a human head seems ever-present and solemn. It radiates calm and serenity.' }, { name: 'Moai', artist: 'Unknown Artist', description: 'Located on the Easter Island, there are 1,000 moai, or extant monumental statues, created by the early Rapa Nui people, which some believe represented deified ancestors.', - url: 'https://i.imgur.com/RCwLEoQm.jpg', + url: 'https://react.dev/images/docs/scientists/RCwLEoQm.jpg', alt: 'Three monumental stone busts with the heads that are disproportionately large with somber faces.' }, { name: 'Blue Nana', artist: 'Niki de Saint Phalle', description: 'The Nanas are triumphant creatures, symbols of femininity and maternity. Initially, Saint Phalle used fabric and found objects for the Nanas, and later on introduced polyester to achieve a more vibrant effect.', - url: 'https://i.imgur.com/Sd1AgUOm.jpg', + url: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', alt: 'A large mosaic sculpture of a whimsical dancing female figure in a colorful costume emanating joy.' }, { name: 'Ultimate Form', artist: 'Barbara Hepworth', description: 'This abstract bronze sculpture is a part of The Family of Man series located at Yorkshire Sculpture Park. Hepworth chose not to create literal representations of the world but developed abstract forms inspired by people and landscapes.', - url: 'https://i.imgur.com/2heNQDcm.jpg', + url: 'https://react.dev/images/docs/scientists/2heNQDcm.jpg', alt: 'A tall sculpture made of three elements stacked on each other reminding of a human figure.' }, { name: 'Cavaliere', artist: 'Lamidi Olonade Fakeye', description: "Descended from four generations of woodcarvers, Fakeye's work blended traditional and contemporary Yoruba themes.", - url: 'https://i.imgur.com/wIdGuZwm.png', + url: 'https://react.dev/images/docs/scientists/wIdGuZwm.png', alt: 'An intricate wood sculpture of a warrior with a focused face on a horse adorned with patterns.' }, { name: 'Big Bellies', artist: 'Alina Szapocznikow', description: "Szapocznikow is known for her sculptures of the fragmented body as a metaphor for the fragility and impermanence of youth and beauty. This sculpture depicts two very realistic large bellies stacked on top of each other, each around five feet (1,5m) tall.", - url: 'https://i.imgur.com/AlHTAdDm.jpg', + url: 'https://react.dev/images/docs/scientists/AlHTAdDm.jpg', alt: 'The sculpture reminds a cascade of folds, quite different from bellies in classical sculptures.' }, { name: 'Terracotta Army', artist: 'Unknown Artist', description: 'The Terracotta Army is a collection of terracotta sculptures depicting the armies of Qin Shi Huang, the first Emperor of China. The army consisted of more than 8,000 soldiers, 130 chariots with 520 horses, and 150 cavalry horses.', - url: 'https://i.imgur.com/HMFmH6m.jpg', + url: 'https://react.dev/images/docs/scientists/HMFmH6m.jpg', alt: '12 terracotta sculptures of solemn warriors, each with a unique facial expression and armor.' }, { name: 'Lunar Landscape', artist: 'Louise Nevelson', description: 'Nevelson was known for scavenging objects from New York City debris, which she would later assemble into monumental constructions. In this one, she used disparate parts like a bedpost, juggling pin, and seat fragment, nailing and gluing them into boxes that reflect the influence of Cubism’s geometric abstraction of space and form.', - url: 'https://i.imgur.com/rN7hY6om.jpg', + url: 'https://react.dev/images/docs/scientists/rN7hY6om.jpg', alt: 'A black matte sculpture where the individual elements are initially indistinguishable.' }, { name: 'Aureole', artist: 'Ranjani Shettar', description: 'Shettar merges the traditional and the modern, the natural and the industrial. Her art focuses on the relationship between man and nature. Her work was described as compelling both abstractly and figuratively, gravity defying, and a "fine synthesis of unlikely materials."', - url: 'https://i.imgur.com/okTpbHhm.jpg', + url: 'https://react.dev/images/docs/scientists/okTpbHhm.jpg', alt: 'A pale wire-like sculpture mounted on concrete wall and descending on the floor. It appears light.' }, { name: 'Hippos', artist: 'Taipei Zoo', description: 'The Taipei Zoo commissioned a Hippo Square featuring submerged hippos at play.', - url: 'https://i.imgur.com/6o5Vuyu.jpg', + url: 'https://react.dev/images/docs/scientists/6o5Vuyu.jpg', alt: 'A group of bronze hippo sculptures emerging from the sett sidewalk as if they were swimming.' }]; ``` @@ -1265,7 +1269,7 @@ export default function Form() { } ``` -```css +```css h1 { margin-top: 10px; } ``` @@ -1316,7 +1320,7 @@ export default function Form() { } ``` -```css +```css h1 { margin-top: 10px; } ``` @@ -1445,7 +1449,11 @@ export default function FeedbackForm() { `useState` কলটির দ্বিতীয় উদাহরণটি `if` কন্ডিশনের পরে সরিয়ে নিয়ে যান এবং লক্ষ্য করুন কীভাবে এটি আবার ভেঙে যায়। +<<<<<<< HEAD যদি আপনার লিন্টার [React-এর জন্য কনফিগার করা থাকে](/learn/editor-setup#linting), তাহলে এরকম ভুল করলে আপনি একটি লিন্ট এরর দেখতে পাবেন। যদি আপনি লোকালি এই ভুল কোড চেষ্টা করে কোনো এরর না দেখেন, তাহলে আপনার প্রজেক্টের জন্য লিন্টিং সেট আপ করা প্রয়োজন। +======= +If your linter is [configured for React](/learn/editor-setup#linting), you should see a lint error when you make a mistake like this. If you don't see an error when you try the faulty code locally, you need to set up linting for your project. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca </Solution> diff --git a/src/content/learn/thinking-in-react.md b/src/content/learn/thinking-in-react.md index 67a58476c..1343b1e41 100644 --- a/src/content/learn/thinking-in-react.md +++ b/src/content/learn/thinking-in-react.md @@ -37,9 +37,15 @@ React এ একটি UI ইমপ্লিমেন্ট করতে আপ একটি ডিজাইনের কম্পোনেন্ট গুলোকে আপনি বিভিন্ন ভাবে ভাগ করতে পারেন। কীভাবে করবেন সেটা নির্ভর করবে আপনার কাজের ক্ষেত্রের উপর। +<<<<<<< HEAD * **Programming**--একটি নতুন function বা object তৈরী করবেন কি না এই সিদ্ধান্তটি যেভাবে নিতেন, ঠিক একই পদ্ধতিতে সিদ্ধান্ত নিন। এমন একটি পদ্ধতি হচ্ছে [separation of concerns](https://en.wikipedia.org/wiki/Separation_of_concerns), যা অনুসারে, একটা কম্পোনেন্ট আদর্শত কেবল একটি কাজই করবে। যদি সেটা বড় হয়ে যায় তাহলে ছোট ছোট সাবকম্পোনেন্ট এ ভাগ করে ফেলতে হবে। * **CSS**--আপনি class selector কীসের জন্য তৈরী করতেন সেটা বিবেচনায় রাখুন (যদিও কম্পোনেন্ট আরেকটু কম granular)। * **Design**--চিন্তা করুন আপনি আপনার ডিজাইনের layer গুলো কীভাবে বিন্যস্ত করতেন। +======= +* **Programming**--use the same techniques for deciding if you should create a new function or object. One such technique is the [separation of concerns](https://en.wikipedia.org/wiki/Separation_of_concerns), that is, a component should ideally only be concerned with one thing. If it ends up growing, it should be decomposed into smaller subcomponents. +* **CSS**--consider what you would make class selectors for. (However, components are a bit less granular.) +* **Design**--consider how you would organize the design's layers. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca যদি আপনার JSON গোছানো থাকে, আপনি দেখবেন বেশির ভাগ সময় এটা স্বাভাবিকতই আপনার UI এর কম্পোনেন্ট এর গঠন বিন্যাসের সাথে মিলে যাবে। এর কারণ UI এবং ডেটা মডেলগুলো সাধারণত একই information architecture ব্যবহার করে, অর্থাৎ একই আকারে বিন্যস্ত হয়। আপনার UI কে এমন ভাবে কম্পোনেন্ট এ ভাগ করুন যেন প্রতিটি কম্পোনেন্ট আপনার ডেটা মডেলের একটি অংশের সাথে মিলে যায়। @@ -228,10 +234,17 @@ UI interactive করার জন্য আপনাকে ব্যবহা আমরা একে একে আরেকবার বুঝে নেইঃ +<<<<<<< HEAD 1. পণ্যের আসল তালিকা **props হিসেবে চলে আসে, সুতরাং এটা state না।** 2. খুঁজার জন্য ব্যবহারকারী যে ইনপুট দিবেন সেটা state হবার কথা, কারণ এটা সময়ের সাথে সাথে বদলে যাবে এবং কোন কিছু থেকে এটা compute করা সম্ভব না। 3. চেকবক্সের ভ্যালুটাও একটা state কারণ এটা সময়ের সাথে সাথে বদলাবে এবং কোনভাবে compute করা সম্ভব না। 4. পণ্য বাছাই করা তালিকাটি **state না** কারণ চেকবক্সের ভ্যালু এবং পণ্যের তালিকা থেকে সার্চ টেক্সট বাছাই করার মাধ্যমে তা **compute করা সম্ভব**। +======= +1. The original list of products is **passed in as props, so it's not state.** +2. The search text seems to be state since it changes over time and can't be computed from anything. +3. The value of the checkbox seems to be state since it changes over time and can't be computed from anything. +4. The filtered list of products **isn't state because it can be computed** by taking the original list of products and filtering it according to the search text and value of the checkbox. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca অর্থাৎ, শুধুমাত্র সার্চ টেক্সট এবং চেকবক্সের ভ্যালু এই দুইটাই state! কী সুন্দরমত হয়ে গেল! @@ -265,6 +278,7 @@ Props এবং state আলাদা বটে, তবে এরা একই এখন তাদের জন্য আমাদের পরিকল্পনা ঝালাই করে নিই। +<<<<<<< HEAD 1. **state ব্যবহার করে এমন কম্পোনেন্টগুলো চিহ্নিত করুন** * `ProductTable`কে ওই state(সার্চ টেক্সট এবং চেকবক্স) ব্যবহার করে পণ্যের তালিকা বাছাই করতে হবে। * `SearchBar` কে ওই state(সার্চ টেক্সট এবং চেকবক্স) দেখাতে হবে। @@ -272,23 +286,32 @@ Props এবং state আলাদা বটে, তবে এরা একই 3. **State কোথায় থাকবে সেটা সিদ্ধান্ত নিন**: আমরা বাছাই করা text এবং checked state ভ্যালুগুলো `FilterableProductTable` -তে রাখব। সুতরাং state ভ্যালুগুলো থাকবে `FilterableProductTable` এর মধ্যে। +======= +1. **Identify components that use state:** + * `ProductTable` needs to filter the product list based on that state (search text and checkbox value). + * `SearchBar` needs to display that state (search text and checkbox value). +2. **Find their common parent:** The first parent component both components share is `FilterableProductTable`. +3. **Decide where the state lives**: We'll keep the filter text and checked state values in `FilterableProductTable`. + +So the state values will live in `FilterableProductTable`. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca কম্পোনেন্টে [`useState()` Hook.](/reference/react/useState) ব্যবহার করে state যুক্ত করুন। Hook হচ্ছে বিশেষ ফাংশন যা আপনাকে Reac† এর "মায়ায় হারাতে" বাধ্য করবে। `FilterableProductTable` এর একদম উপরে দুটো state variable যুক্ত করুন এবং তাদের প্রাথমিক state ঠিক করে দিন। ```js function FilterableProductTable({ products }) { const [filterText, setFilterText] = useState(''); - const [inStockOnly, setInStockOnly] = useState(false); + const [inStockOnly, setInStockOnly] = useState(false); ``` Then, pass `filterText` and `inStockOnly` to `ProductTable` and `SearchBar` as props: ```js <div> - <SearchBar - filterText={filterText} + <SearchBar + filterText={filterText} inStockOnly={inStockOnly} /> - <ProductTable + <ProductTable products={products} filterText={filterText} inStockOnly={inStockOnly} /> @@ -308,10 +331,10 @@ function FilterableProductTable({ products }) { return ( <div> - <SearchBar - filterText={filterText} + <SearchBar + filterText={filterText} inStockOnly={inStockOnly} /> - <ProductTable + <ProductTable products={products} filterText={filterText} inStockOnly={inStockOnly} /> @@ -389,13 +412,13 @@ function ProductTable({ products, filterText, inStockOnly }) { function SearchBar({ filterText, inStockOnly }) { return ( <form> - <input - type="text" - value={filterText} + <input + type="text" + value={filterText} placeholder="Search..."/> <label> - <input - type="checkbox" + <input + type="checkbox" checked={inStockOnly} /> {' '} Only show products in stock @@ -451,9 +474,9 @@ td { function SearchBar({ filterText, inStockOnly }) { return ( <form> - <input - type="text" - value={filterText} + <input + type="text" + value={filterText} placeholder="Search..."/> ``` @@ -462,7 +485,11 @@ function SearchBar({ filterText, inStockOnly }) { ## ধাপ ৫ঃ inverse data flow যুক্ত করুন {/*step-5-add-inverse-data-flow*/} +<<<<<<< HEAD এখন hierarchy-তে props এবং state এর তথ্য সঠিকভাবে নিচের দিকে প্রবাহিত হওয়ায় আপনার অ্যাপ ঠিকঠাক দেখা যাচ্ছে। কিন্তু ব্যবহারকারীর দেওয়া তথ্যের ভিত্তিতে state পরিবর্তন করতে আপনাকে উল্টোটিকে তথ্য প্রবাহের ব্যবস্থা রাখতে হবেঃ hierarchy-র গভীরে থাকা কম্পোনেন্টগুলো দিয়ে `FilterableProductTable` এ থাকা state পরিবর্তন করবে হবে। +======= +Currently your app renders correctly with props and state flowing down the hierarchy. But to change the state according to user input, you will need to support data flowing the other way: the form components deep in the hierarchy need to update the state in `FilterableProductTable`. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca React makes this data flow explicit, but it requires a little more typing than two-way data binding. If you try to type or check the box in the example above, you'll see that React ignores your input. This is intentional. By writing `<input value={filterText} />`, you've set the `value` prop of the `input` to always be equal to the `filterText` state passed in from `FilterableProductTable`. Since `filterText` state is never set, the input never changes. @@ -475,8 +502,8 @@ function FilterableProductTable({ products }) { return ( <div> - <SearchBar - filterText={filterText} + <SearchBar + filterText={filterText} inStockOnly={inStockOnly} onFilterTextChange={setFilterText} onInStockOnlyChange={setInStockOnly} /> @@ -519,13 +546,13 @@ function FilterableProductTable({ products }) { return ( <div> - <SearchBar - filterText={filterText} - inStockOnly={inStockOnly} - onFilterTextChange={setFilterText} + <SearchBar + filterText={filterText} + inStockOnly={inStockOnly} + onFilterTextChange={setFilterText} onInStockOnlyChange={setInStockOnly} /> - <ProductTable - products={products} + <ProductTable + products={products} filterText={filterText} inStockOnly={inStockOnly} /> </div> @@ -607,14 +634,14 @@ function SearchBar({ }) { return ( <form> - <input - type="text" - value={filterText} placeholder="Search..." + <input + type="text" + value={filterText} placeholder="Search..." onChange={(e) => onFilterTextChange(e.target.value)} /> <label> - <input - type="checkbox" - checked={inStockOnly} + <input + type="checkbox" + checked={inStockOnly} onChange={(e) => onInStockOnlyChange(e.target.checked)} /> {' '} Only show products in stock diff --git a/src/content/learn/tutorial-tic-tac-toe.md b/src/content/learn/tutorial-tic-tac-toe.md index 989ea9adc..198728702 100644 --- a/src/content/learn/tutorial-tic-tac-toe.md +++ b/src/content/learn/tutorial-tic-tac-toe.md @@ -337,7 +337,7 @@ import './styles.css'; import App from './App'; ``` -Lines 1-5 bring all the necessary pieces together: +Lines 1-5 bring all the necessary pieces together: * React * React's library to talk to web browsers (React DOM) @@ -551,7 +551,7 @@ export default function Board() { } ``` -Note how unlike the browser `div`s, your own components `Board` and `Square` must start with a capital letter. +Note how unlike the browser `div`s, your own components `Board` and `Square` must start with a capital letter. Let's take a look: @@ -899,19 +899,20 @@ body { ### React Developer Tools {/*react-developer-tools*/} -React DevTools let you check the props and the state of your React components. You can find the React DevTools tab at the bottom of the _browser_ section in CodeSandbox: +React Developer Tools let you check the props and the state of your React components. It is available as a [Chrome](https://chrome.google.com/webstore/detail/react-developer-tools/fmkadmapgofadopljbjfkapdkoienihi?hl=en), [Firefox](https://addons.mozilla.org/en-US/firefox/addon/react-devtools/), and [Edge](https://microsoftedge.microsoft.com/addons/detail/react-developer-tools/gpphkfbcpidddadnkolkpfckpihlkkil) browser extension. -![React DevTools in CodeSandbox](../images/tutorial/codesandbox-devtools.png) +After you install it, a new *Components* tab will appear in your browser Developer Tools for sites using React. If you're following along in CodeSandbox, you'd need to first open your sandbox preview in a new tab: -To inspect a particular component on the screen, use the button in the top left corner of React DevTools: +![opening in new tab](../images/tutorial/sandbox-new-tab.png) -![Selecting components on the page with React DevTools](../images/tutorial/devtools-select.gif) +Then, on the preview page, open your browser's DevTools and find the *Components* tab: -<Note> +![components tab](../images/tutorial/components-tab.png) -For local development, React DevTools is available as a [Chrome](https://chrome.google.com/webstore/detail/react-developer-tools/fmkadmapgofadopljbjfkapdkoienihi?hl=en), [Firefox](https://addons.mozilla.org/en-US/firefox/addon/react-devtools/), and [Edge](https://microsoftedge.microsoft.com/addons/detail/react-developer-tools/gpphkfbcpidddadnkolkpfckpihlkkil) browser extension. Install it, and the *Components* tab will appear in your browser Developer Tools for sites using React. +To inspect a particular component on the screen, use the button in the top left corner of the Components tab: + +![inspecting with devtools](../images/tutorial/devtools-inspect.gif) -</Note> ## Completing the game {/*completing-the-game*/} @@ -1094,7 +1095,7 @@ function Square({ value, onSquareClick }) { } ``` -Now you'll connect the `onSquareClick` prop to a function in the `Board` component that you'll name `handleClick`. To connect `onSquareClick` to `handleClick` you'll pass a function to the `onSquareClick` prop of the first `Square` component: +Now you'll connect the `onSquareClick` prop to a function in the `Board` component that you'll name `handleClick`. To connect `onSquareClick` to `handleClick` you'll pass a function to the `onSquareClick` prop of the first `Square` component: ```js {7} export default function Board() { @@ -2073,12 +2074,12 @@ export default function Game() { } ``` -You can see what your code should look like below. Note that you should see an error in the developer tools console that says: +You can see what your code should look like below. Note that you should see an error in the developer tools console that says: <ConsoleBlock level="warning"> Warning: Each child in an array or iterator should have a unique "key" prop. Check the render method of `Game`. </ConsoleBlock> - + You'll fix this error in the next section. <Sandpack> diff --git a/src/content/learn/updating-objects-in-state.md b/src/content/learn/updating-objects-in-state.md index ca6585145..5e04e7ae5 100644 --- a/src/content/learn/updating-objects-in-state.md +++ b/src/content/learn/updating-objects-in-state.md @@ -199,7 +199,7 @@ setPosition({ Mutation is only a problem when you change *existing* objects that are already in state. Mutating an object you've just created is okay because *no other code references it yet.* Changing it isn't going to accidentally impact something that depends on it. This is called a "local mutation". You can even do local mutation [while rendering.](/learn/keeping-components-pure#local-mutation-your-components-little-secret) Very convenient and completely okay! -</DeepDive> +</DeepDive> ## Copying objects with the spread syntax {/*copying-objects-with-the-spread-syntax*/} @@ -296,7 +296,7 @@ setPerson({ }); ``` -Now the form works! +Now the form works! Notice how you didn't declare a separate state variable for each input field. For large forms, keeping all data grouped in an object is very convenient--as long as you update it correctly! @@ -373,7 +373,7 @@ input { margin-left: 5px; margin-bottom: 5px; } </Sandpack> -Note that the `...` spread syntax is "shallow"--it only copies things one level deep. This makes it fast, but it also means that if you want to update a nested property, you'll have to use it more than once. +Note that the `...` spread syntax is "shallow"--it only copies things one level deep. This makes it fast, but it also means that if you want to update a nested property, you'll have to use it more than once. <DeepDive> @@ -457,7 +457,7 @@ const [person, setPerson] = useState({ artwork: { title: 'Blue Nana', city: 'Hamburg', - image: 'https://i.imgur.com/Sd1AgUOm.jpg', + image: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', } }); ``` @@ -501,7 +501,7 @@ export default function Form() { artwork: { title: 'Blue Nana', city: 'Hamburg', - image: 'https://i.imgur.com/Sd1AgUOm.jpg', + image: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', } }); @@ -579,8 +579,8 @@ export default function Form() { <br /> (located in {person.artwork.city}) </p> - <img - src={person.artwork.image} + <img + src={person.artwork.image} alt={person.artwork.title} /> </> @@ -608,7 +608,7 @@ let obj = { artwork: { title: 'Blue Nana', city: 'Hamburg', - image: 'https://i.imgur.com/Sd1AgUOm.jpg', + image: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', } }; ``` @@ -619,7 +619,7 @@ However, "nesting" is an inaccurate way to think about how objects behave. When let obj1 = { title: 'Blue Nana', city: 'Hamburg', - image: 'https://i.imgur.com/Sd1AgUOm.jpg', + image: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', }; let obj2 = { @@ -634,7 +634,7 @@ The `obj1` object is not "inside" `obj2`. For example, `obj3` could "point" at ` let obj1 = { title: 'Blue Nana', city: 'Hamburg', - image: 'https://i.imgur.com/Sd1AgUOm.jpg', + image: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', }; let obj2 = { @@ -650,7 +650,7 @@ let obj3 = { If you were to mutate `obj3.artwork.city`, it would affect both `obj2.artwork.city` and `obj1.city`. This is because `obj3.artwork`, `obj2.artwork`, and `obj1` are the same object. This is difficult to see when you think of objects as "nested". Instead, they are separate objects "pointing" at each other with properties. -</DeepDive> +</DeepDive> ### Write concise update logic with Immer {/*write-concise-update-logic-with-immer*/} @@ -690,7 +690,7 @@ export default function Form() { artwork: { title: 'Blue Nana', city: 'Hamburg', - image: 'https://i.imgur.com/Sd1AgUOm.jpg', + image: 'https://react.dev/images/docs/scientists/Sd1AgUOm.jpg', } }); @@ -755,8 +755,8 @@ export default function Form() { <br /> (located in {person.artwork.city}) </p> - <img - src={person.artwork.image} + <img + src={person.artwork.image} alt={person.artwork.title} /> </> diff --git a/src/content/learn/writing-markup-with-jsx.md b/src/content/learn/writing-markup-with-jsx.md index f62f74306..3d77083aa 100644 --- a/src/content/learn/writing-markup-with-jsx.md +++ b/src/content/learn/writing-markup-with-jsx.md @@ -70,9 +70,9 @@ JSX এবং React দুটি পৃথক জিনিস। এগুলি ```html <h1>Hedy Lamarr's Todos</h1> -<img - src="https://i.imgur.com/yXOvdOSs.jpg" - alt="Hedy Lamarr" +<img + src="https://react.dev/images/docs/scientists/yXOvdOSs.jpg" + alt="Hedy Lamarr" class="photo" > <ul> @@ -102,9 +102,9 @@ export default function TodoList() { return ( // This doesn't quite work! <h1>Hedy Lamarr's Todos</h1> - <img - src="https://i.imgur.com/yXOvdOSs.jpg" - alt="Hedy Lamarr" + <img + src="https://react.dev/images/docs/scientists/yXOvdOSs.jpg" + alt="Hedy Lamarr" class="photo" > <ul> @@ -141,9 +141,9 @@ img { height: 90px } ```js {1,11} <div> <h1>Hedy Lamarr's Todos</h1> - <img - src="https://i.imgur.com/yXOvdOSs.jpg" - alt="Hedy Lamarr" + <img + src="https://react.dev/images/docs/scientists/yXOvdOSs.jpg" + alt="Hedy Lamarr" class="photo" > <ul> @@ -158,9 +158,9 @@ img { height: 90px } ```js {1,11} <> <h1>Hedy Lamarr's Todos</h1> - <img - src="https://i.imgur.com/yXOvdOSs.jpg" - alt="Hedy Lamarr" + <img + src="https://react.dev/images/docs/scientists/yXOvdOSs.jpg" + alt="Hedy Lamarr" class="photo" > <ul> @@ -187,9 +187,9 @@ Hedy Lamarr এর ছবি এবং লিস্ট আইটেমগুল ```js {2-6,8-10} <> - <img - src="https://i.imgur.com/yXOvdOSs.jpg" - alt="Hedy Lamarr" + <img + src="https://react.dev/images/docs/scientists/yXOvdOSs.jpg" + alt="Hedy Lamarr" class="photo" /> <ul> @@ -207,9 +207,9 @@ JSX জাভাস্ক্রিপ্টে পরিণত হয় এব এই কারণেই, React-এ, অনেক HTML এবং SVG অ্যাট্রিবিউট ক্যামেলকেসে লেখা থাকে। উদাহরণস্বরূপ, `stroke-width` এর পরিবর্তে আপনি `strokeWidth` ব্যবহার করেন। যেহেতু `class` একটি সংরক্ষিত শব্দ, তাই React-এ আপনি পরিবর্তে `className` লিখবেন,[সংশ্লিষ্ট DOM প্রপার্টি](https://developer.mozilla.org/en-US/docs/Web/API/Element/className)এর নামানুসারে। ): ```js {4} -<img - src="https://i.imgur.com/yXOvdOSs.jpg" - alt="Hedy Lamarr" +<img + src="https://react.dev/images/docs/scientists/yXOvdOSs.jpg" + alt="Hedy Lamarr" className="photo" /> ``` @@ -235,10 +235,10 @@ export default function TodoList() { return ( <> <h1>Hedy Lamarr's Todos</h1> - <img - src="https://i.imgur.com/yXOvdOSs.jpg" - alt="Hedy Lamarr" - className="photo" + <img + src="https://react.dev/images/docs/scientists/yXOvdOSs.jpg" + alt="Hedy Lamarr" + className="photo" /> <ul> <li>Invent new traffic lights</li> diff --git a/src/content/learn/your-first-component.md b/src/content/learn/your-first-component.md index 1c38fa655..81744322e 100644 --- a/src/content/learn/your-first-component.md +++ b/src/content/learn/your-first-component.md @@ -63,7 +63,7 @@ Traditionally when creating web pages, web developers marked up their content an export default function Profile() { return ( <img - src="https://i.imgur.com/MK3eW3Am.jpg" + src="https://react.dev/images/docs/scientists/MK3eW3Am.jpg" alt="Katherine Johnson" /> ) @@ -99,7 +99,7 @@ The component returns an `<img />` tag with `src` and `alt` attributes. `<img /> Return statements can be written all on one line, as in this component: ```js -return <img src="https://i.imgur.com/MK3eW3As.jpg" alt="Katherine Johnson" />; +return <img src="https://react.dev/images/docs/scientists/MK3eW3As.jpg" alt="Katherine Johnson" />; ``` But if your markup isn't all on the same line as the `return` keyword, you must wrap it in a pair of parentheses: @@ -107,7 +107,7 @@ But if your markup isn't all on the same line as the `return` keyword, you must ```js return ( <div> - <img src="https://i.imgur.com/MK3eW3As.jpg" alt="Katherine Johnson" /> + <img src="https://react.dev/images/docs/scientists/MK3eW3As.jpg" alt="Katherine Johnson" /> </div> ); ``` @@ -128,7 +128,7 @@ Now that you've defined your `Profile` component, you can nest it inside other c function Profile() { return ( <img - src="https://i.imgur.com/MK3eW3As.jpg" + src="https://react.dev/images/docs/scientists/MK3eW3As.jpg" alt="Katherine Johnson" /> ); @@ -164,9 +164,9 @@ And `Profile` contains even more HTML: `<img />`. In the end, this is what the b ```html <section> <h1>Amazing scientists</h1> - <img src="https://i.imgur.com/MK3eW3As.jpg" alt="Katherine Johnson" /> - <img src="https://i.imgur.com/MK3eW3As.jpg" alt="Katherine Johnson" /> - <img src="https://i.imgur.com/MK3eW3As.jpg" alt="Katherine Johnson" /> + <img src="https://react.dev/images/docs/scientists/MK3eW3As.jpg" alt="Katherine Johnson" /> + <img src="https://react.dev/images/docs/scientists/MK3eW3As.jpg" alt="Katherine Johnson" /> + <img src="https://react.dev/images/docs/scientists/MK3eW3As.jpg" alt="Katherine Johnson" /> </section> ``` @@ -248,7 +248,7 @@ This sandbox doesn't work because the root component is not exported: function Profile() { return ( <img - src="https://i.imgur.com/lICfvbD.jpg" + src="https://react.dev/images/docs/scientists/lICfvbD.jpg" alt="Aklilu Lemma" /> ); @@ -273,7 +273,7 @@ Add `export default` before the function definition like so: export default function Profile() { return ( <img - src="https://i.imgur.com/lICfvbD.jpg" + src="https://react.dev/images/docs/scientists/lICfvbD.jpg" alt="Aklilu Lemma" /> ); @@ -306,7 +306,7 @@ You may get an "Unexpected token" error while trying to fix this. In that case, ```js export default function Profile() { return - <img src="https://i.imgur.com/jA8hHMpm.jpg" alt="Katsuko Saruhashi" />; + <img src="https://react.dev/images/docs/scientists/jA8hHMpm.jpg" alt="Katsuko Saruhashi" />; } ``` @@ -324,7 +324,7 @@ You can fix this component by moving the return statement to one line like so: ```js export default function Profile() { - return <img src="https://i.imgur.com/jA8hHMpm.jpg" alt="Katsuko Saruhashi" />; + return <img src="https://react.dev/images/docs/scientists/jA8hHMpm.jpg" alt="Katsuko Saruhashi" />; } ``` @@ -341,9 +341,9 @@ Or by wrapping the returned JSX markup in parentheses that open right after `ret ```js export default function Profile() { return ( - <img - src="https://i.imgur.com/jA8hHMpm.jpg" - alt="Katsuko Saruhashi" + <img + src="https://react.dev/images/docs/scientists/jA8hHMpm.jpg" + alt="Katsuko Saruhashi" /> ); } @@ -367,7 +367,7 @@ Something's wrong with how the `Profile` component is declared and used. Can you function profile() { return ( <img - src="https://i.imgur.com/QIrZWGIs.jpg" + src="https://react.dev/images/docs/scientists/QIrZWGIs.jpg" alt="Alan L. Hart" /> ); @@ -403,7 +403,7 @@ Change `function profile()` to `function Profile()`, and then change every `<pro function Profile() { return ( <img - src="https://i.imgur.com/QIrZWGIs.jpg" + src="https://react.dev/images/docs/scientists/QIrZWGIs.jpg" alt="Alan L. Hart" /> ); diff --git a/src/content/reference/dev-tools/react-performance-tracks.md b/src/content/reference/dev-tools/react-performance-tracks.md index dc2912da2..d4757b9ec 100644 --- a/src/content/reference/dev-tools/react-performance-tracks.md +++ b/src/content/reference/dev-tools/react-performance-tracks.md @@ -138,7 +138,7 @@ In development builds, when you click on a component render entry, you can inspe #### Server Requests {/*server-requests*/} -The Server Requests track visualized all Promises that eventually end up in a React Server Component. This includes any `async` operations like calling `fetch` or async Node.js file operations. +The Server Requests track visualized all Promises that eventually end up in a React Server Component. This includes any `async` operations like calling `fetch` or async Node.js file operations. React will try to combine Promises that are started from inside third-party code into a single span representing the the duration of the entire operation blocking 1st party code. For example, a third party library method called `getUser` that calls `fetch` internally multiple times will be represented as a single span called `getUser`, instead of showing multiple `fetch` spans. diff --git a/src/content/reference/eslint-plugin-react-hooks/lints/incompatible-library.md b/src/content/reference/eslint-plugin-react-hooks/lints/incompatible-library.md index e057e1978..6acffb227 100644 --- a/src/content/reference/eslint-plugin-react-hooks/lints/incompatible-library.md +++ b/src/content/reference/eslint-plugin-react-hooks/lints/incompatible-library.md @@ -16,7 +16,7 @@ These libraries were designed before React's memoization rules were fully docume ## Rule Details {/*rule-details*/} -Some libraries use patterns that aren't supported by React. When the linter detects usages of these APIs from a [known list](https://github.com/facebook/react/blob/main/compiler/packages/babel-plugin-react-compiler/src/HIR/DefaultModuleTypeProvider.ts), it flags them under this rule. This means that React Compiler can automatically skip over components that use these incompatible APIs, in order to avoid breaking your app. +Some libraries use patterns that aren't supported by React. When the linter detects usages of these APIs from a [known list](https://github.com/react/react/blob/main/compiler/packages/babel-plugin-react-compiler/src/HIR/DefaultModuleTypeProvider.ts), it flags them under this rule. This means that React Compiler can automatically skip over components that use these incompatible APIs, in order to avoid breaking your app. ```js // Example of how memoization breaks with these libraries @@ -135,4 +135,4 @@ function Component() { } ``` -Some other libraries do not yet have alternative APIs that are compatible with React's memoization model. If the linter doesn't automatically skip over your components or hooks that call these APIs, please [file an issue](https://github.com/facebook/react/issues) so we can add it to the linter. +Some other libraries do not yet have alternative APIs that are compatible with React's memoization model. If the linter doesn't automatically skip over your components or hooks that call these APIs, please [file an issue](https://github.com/react/react/issues) so we can add it to the linter. diff --git a/src/content/reference/react-dom/client/createRoot.md b/src/content/reference/react-dom/client/createRoot.md index 7f2677a57..03dbcf07e 100644 --- a/src/content/reference/react-dom/client/createRoot.md +++ b/src/content/reference/react-dom/client/createRoot.md @@ -90,8 +90,13 @@ React `root`-এ `<App />` দেখাবে, এবং এর মধ্যক * আপনি যদি একি রুটে একাধিকবার `render` কল করেন, তাহলে আপনার পাঠানো সর্বশেষ JSX দেখানোর খাতিরে React প্রয়োজনমত DOM আপডেট করে ফেলবে। React আগেরবার রেন্ডার হওয়া ট্রি এর সাথে ["মিলিয়ে দেখবে"](/learn/preserving-and-resetting-state) এবং সিদ্ধান্ত নিবে DOM এর কোণ অংশগুলো পুনর্ব্যবহার করা যায় আর কোনগুলো আবার বানাতে হবে। একই রুটে আবার `render` কল করা রুট কম্পোনেন্টে [`set` function](/reference/react/useState#setstate) কল করার মতঃ React অপ্রয়োজনীয় DOM আপডেট এড়ানোর চেষ্টা করে। +<<<<<<< HEAD * যদিও rendering শুরু হওয়ার পর synchronous, `root.render(...)` synchronous নয়। এর মানে হল `root.render()` এর পরের কোড ওই নির্দিষ্ট render এর কোন effects (`useLayoutEffect`, `useEffect`) fire হওয়ার আগেই রান হতে পারে। এটা সাধারণত ঠিক আছে এবং খুব কমই adjustment প্রয়োজন হয়। বিরল ক্ষেত্রে যেখানে effect timing গুরুত্বপূর্ণ, আপনি `root.render(...)` কে [`flushSync`](https://react.dev/reference/react-dom/client/flushSync) দিয়ে wrap করতে পারেন যাতে initial render সম্পূর্ণভাবে synchronously রান হয়। +======= +* Although rendering is synchronous once it starts, `root.render(...)` is not. This means code after `root.render()` may run before any effects (`useLayoutEffect`, `useEffect`) of that specific render are fired. This is usually fine and rarely needs adjustment. In rare cases where effect timing matters, you can wrap `root.render(...)` in [`flushSync`](https://react.dev/reference/react-dom/flushSync) to ensure the initial render runs fully synchronously. + +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca ```js const root = createRoot(document.getElementById('root')); root.render(<App />); @@ -113,7 +118,11 @@ root.unmount(); এটা সে ক্ষেত্রে সবচেয়ে কাজে লাগে যদি অন্য কোন কোডের কারণে DOM থেকে আপনার React রুটের DOM নোড (বা ট্রিতে এর কোন পূর্বসূরী) মুছে যায়। উদাহরণস্বরূপ, ধরেন একটা jQuery ট্যাব প্যানেল আছে যা DOM থেকে অচল ট্যাবগুলোকে ফেলে দেয়। যদি একটা ট্যাব ফেলে দেওয়া হয়, তাহলে এই ট্যাবের মধ্যে থাকা যাবতীয় সব কিছু(ভিতরকার React রুটগুলো সহ) DOM থেকে মুছে যায়। সেক্ষেত্রে, `root.unmount` কল করার মাধ্যমে আপনার React কে বলতে হবে মুছে যাওয়া রুটের কনটেন্ট ম্যানেজ করা "বন্ধ" করতে। না হলে, মুছে যাওয়া রুটের ভেতরকার কম্পোনেন্ট সাবস্ক্রিপশনের মত global resource মুছবে না এবং সেগুলো ফ্রি হবে না। +<<<<<<< HEAD `root.unmount` কল করলে রুটের সব কম্পোনেন্ট আনমাউন্ট হবে এবং রুট DOM নোড থেকে React "detach" হয়ে যাবে। একই সাথে ট্রিতে কোন ইভেন্ট হ্যান্ডলার বা স্টেট থাকলে সেটাও মুছে যাবে। +======= +Calling `root.unmount` will unmount all the components in the root and "detach" React from the root DOM node, including removing any event handlers or state in the tree. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca #### প্যারামিটার {/*root-unmount-parameters*/} @@ -197,7 +206,11 @@ function Counter() { </Sandpack> +<<<<<<< HEAD **যদি আপনার অ্যাপটি সম্পূর্ণরূপে React দিয়ে বানানো হয়ে থাকে, আপনার আর কোন রুট তৈরির বা আবার [`root.render`](#root-render) কল করার প্রয়োজন হবার কথা না** +======= +**If your app is fully built with React, you shouldn't need to create any more roots, or to call [`root.render`](#root-render) again.** +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca এর পর থেকে, React আপনার পুরো অ্যাপের DOM পরিচালনা করবে। আরো কম্পোনেন্ট যুক্ত করবার জন্য [`App` কম্পোনেন্টে তাদের nest করুন।](/learn/importing-and-exporting-components) যখন আপনার UI আপডেটের প্রয়োজন হবে, আপনার প্রতিটি কম্পোনেন্ট [স্টেট ব্যবহার করে](/reference/react/useState) সেটা করতে পারবে। যখন আপনার DOM নোডের বাইরে অতিরিক্ত কোন কনটেন্ট যেমন একটা মোডাল বা টুলটিপ দেখানোর প্রয়োজন হবে তখন, [একটা পোর্টাল ব্যবহার করে সেটা রেন্ডার করুন।](/reference/react-dom/createPortal) @@ -249,11 +262,11 @@ import { createRoot } from 'react-dom/client'; import { Comments, Navigation } from './Components.js'; const navDomNode = document.getElementById('navigation'); -const navRoot = createRoot(navDomNode); +const navRoot = createRoot(navDomNode); navRoot.render(<Navigation />); const commentDomNode = document.getElementById('comments'); -const commentRoot = createRoot(commentDomNode); +const commentRoot = createRoot(commentDomNode); commentRoot.render(<Comments />); ``` @@ -303,7 +316,7 @@ nav ul li { display: inline-block; margin-right: 20px; } ```js const domNode = document.createElement('div'); -const root = createRoot(domNode); +const root = createRoot(domNode); root.render(<Comment />); document.body.appendChild(domNode); // আপনি ডকুমেন্টের যেকোন জায়গায় এটা যোগ করতে পারেন ``` @@ -507,8 +520,13 @@ Warning: You passed a second argument to root.render(...) but it only accepts on // 🚩 ভুলঃ root.render শুধুমাত্র একটি argument নেয়। root.render(App, {onUncaughtError}); +<<<<<<< HEAD // ✅ সঠিকঃ options createRoot এ দিন। const root = createRoot(container, {onUncaughtError}); +======= +// ✅ Correct: pass options to createRoot. +const root = createRoot(container, {onUncaughtError}); +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca root.render(<App />); ``` diff --git a/src/content/reference/react-dom/components/common.md b/src/content/reference/react-dom/components/common.md index f6e73b7c8..ff2f526af 100644 --- a/src/content/reference/react-dom/components/common.md +++ b/src/content/reference/react-dom/components/common.md @@ -36,7 +36,7 @@ These special React props are supported for all built-in components: * `suppressHydrationWarning`: A boolean. If you use [server rendering,](/reference/react-dom/server) normally there is a warning when the server and the client render different content. In some rare cases (like timestamps), it is very hard or impossible to guarantee an exact match. If you set `suppressHydrationWarning` to `true`, React will not warn you about mismatches in the attributes and the content of that element. It only works one level deep, and is intended to be used as an escape hatch. Don't overuse it. [Read about suppressing hydration errors.](/reference/react-dom/client/hydrateRoot#suppressing-unavoidable-hydration-mismatch-errors) -* `style`: An object with CSS styles, for example `{ fontWeight: 'bold', margin: 20 }`. Similarly to the DOM [`style`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/style) property, the CSS property names need to be written as `camelCase`, for example `fontWeight` instead of `font-weight`. You can pass strings or numbers as values. If you pass a number, like `width: 100`, React will automatically append `px` ("pixels") to the value unless it's a [unitless property.](https://github.com/facebook/react/blob/81d4ee9ca5c405dce62f64e61506b8e155f38d8d/packages/react-dom-bindings/src/shared/CSSProperty.js#L8-L57) We recommend using `style` only for dynamic styles where you don't know the style values ahead of time. In other cases, applying plain CSS classes with `className` is more efficient. [Read more about `className` and `style`.](#applying-css-styles) +* `style`: An object with CSS styles, for example `{ fontWeight: 'bold', margin: 20 }`. Similarly to the DOM [`style`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/style) property, the CSS property names need to be written as `camelCase`, for example `fontWeight` instead of `font-weight`. You can pass strings or numbers as values. If you pass a number, like `width: 100`, React will automatically append `px` ("pixels") to the value unless it's a [unitless property.](https://github.com/react/react/blob/81d4ee9ca5c405dce62f64e61506b8e155f38d8d/packages/react-dom-bindings/src/shared/CSSProperty.js#L8-L57) We recommend using `style` only for dynamic styles where you don't know the style values ahead of time. In other cases, applying plain CSS classes with `className` is more efficient. [Read more about `className` and `style`.](#applying-css-styles) These standard DOM props are also supported for all built-in components: @@ -84,11 +84,11 @@ These standard DOM props are also supported for all built-in components: * `onCutCapture`: A version of `onCut` that fires in the [capture phase.](/learn/responding-to-events#capture-phase-events) * `onDoubleClick`: A [`MouseEvent` handler](#mouseevent-handler) function. Fires when the user clicks twice. Corresponds to the browser [`dblclick` event.](https://developer.mozilla.org/en-US/docs/Web/API/Element/dblclick_event) * `onDoubleClickCapture`: A version of `onDoubleClick` that fires in the [capture phase.](/learn/responding-to-events#capture-phase-events) -* [`onDrag`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/drag_event): A [`DragEvent` handler](#dragevent-handler) function. Fires while the user is dragging something. +* [`onDrag`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/drag_event): A [`DragEvent` handler](#dragevent-handler) function. Fires while the user is dragging something. * `onDragCapture`: A version of `onDrag` that fires in the [capture phase.](/learn/responding-to-events#capture-phase-events) -* [`onDragEnd`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/dragend_event): A [`DragEvent` handler](#dragevent-handler) function. Fires when the user stops dragging something. +* [`onDragEnd`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/dragend_event): A [`DragEvent` handler](#dragevent-handler) function. Fires when the user stops dragging something. * `onDragEndCapture`: A version of `onDragEnd` that fires in the [capture phase.](/learn/responding-to-events#capture-phase-events) -* [`onDragEnter`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/dragenter_event): A [`DragEvent` handler](#dragevent-handler) function. Fires when the dragged content enters a valid drop target. +* [`onDragEnter`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/dragenter_event): A [`DragEvent` handler](#dragevent-handler) function. Fires when the dragged content enters a valid drop target. * `onDragEnterCapture`: A version of `onDragEnter` that fires in the [capture phase.](/learn/responding-to-events#capture-phase-events) * [`onDragOver`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/dragover_event): A [`DragEvent` handler](#dragevent-handler) function. Fires on a valid drop target while the dragged content is dragged over it. You must call `e.preventDefault()` here to allow dropping. * `onDragOverCapture`: A version of `onDragOver` that fires in the [capture phase.](/learn/responding-to-events#capture-phase-events) @@ -302,7 +302,7 @@ Some React events do not map directly to the browser's native events. For exampl React event objects implement some of the standard [`Event`](https://developer.mozilla.org/en-US/docs/Web/API/Event) properties: -* [`bubbles`](https://developer.mozilla.org/en-US/docs/Web/API/Event/bubbles): A boolean. Returns whether the event bubbles through the DOM. +* [`bubbles`](https://developer.mozilla.org/en-US/docs/Web/API/Event/bubbles): A boolean. Returns whether the event bubbles through the DOM. * [`cancelable`](https://developer.mozilla.org/en-US/docs/Web/API/Event/cancelable): A boolean. Returns whether the event can be canceled. * [`currentTarget`](https://developer.mozilla.org/en-US/docs/Web/API/Event/currentTarget): A DOM node. Returns the node to which the current handler is attached in the React tree. * [`defaultPrevented`](https://developer.mozilla.org/en-US/docs/Web/API/Event/defaultPrevented): A boolean. Returns whether `preventDefault` was called. @@ -662,7 +662,7 @@ An event handler type for [touch events.](https://developer.mozilla.org/en-US/do * [`shiftKey`](https://developer.mozilla.org/en-US/docs/Web/API/TouchEvent/shiftKey) * [`touches`](https://developer.mozilla.org/en-US/docs/Web/API/TouchEvent/touches) * [`targetTouches`](https://developer.mozilla.org/en-US/docs/Web/API/TouchEvent/targetTouches) - + It also includes the inherited [`UIEvent`](https://developer.mozilla.org/en-US/docs/Web/API/UIEvent) properties: * [`detail`](https://developer.mozilla.org/en-US/docs/Web/API/UIEvent/detail) @@ -795,7 +795,7 @@ import Avatar from './Avatar.js'; const user = { name: 'Hedy Lamarr', - imageUrl: 'https://i.imgur.com/yXOvdOSs.jpg', + imageUrl: 'https://react.dev/images/docs/scientists/yXOvdOSs.jpg', imageSize: 90, }; diff --git a/src/content/reference/react-dom/components/form.md b/src/content/reference/react-dom/components/form.md index 1043b13a0..10e9c6794 100644 --- a/src/content/reference/react-dom/components/form.md +++ b/src/content/reference/react-dom/components/form.md @@ -48,9 +48,47 @@ To create interactive controls for submitting information, render the [built-in ## Usage {/*usage*/} -### Handle form submission on the client {/*handle-form-submission-on-the-client*/} +### Handle form submission with an event handler {/*handle-form-submission-with-an-event-handler*/} -Pass a function to the `action` prop of form to run the function when the form is submitted. [`formData`](https://developer.mozilla.org/en-US/docs/Web/API/FormData) will be passed to the function as an argument so you can access the data submitted by the form. This differs from the conventional [HTML action](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/form#action), which only accepts URLs. After the `action` function succeeds, all uncontrolled field elements in the form are reset. +Pass a function to the `onSubmit` event handler to run code when the form is submitted. By default, the browser sends the form data to the current URL and refreshes the page, so call [`e.preventDefault()`](https://developer.mozilla.org/en-US/docs/Web/API/Event/preventDefault) to override that behavior. + +This example reads the submitted values with [`new FormData(e.target)`](https://developer.mozilla.org/en-US/docs/Web/API/FormData), which collects every field by its `name`. This keeps the inputs [uncontrolled](/reference/react-dom/components/input#reading-the-input-values-when-submitting-a-form). If you instead [control an input with state](/reference/react-dom/components/input#controlling-an-input-with-a-state-variable), read from that state on submit rather than from `FormData`. + +<Sandpack> + +```js src/App.js +export default function Search() { + function handleSubmit(e) { + // Prevent the browser from reloading the page + e.preventDefault(); + + // Read the form data + const form = e.target; + const formData = new FormData(form); + const query = formData.get("query"); + alert(`You searched for '${query}'`); + } + + return ( + <form onSubmit={handleSubmit}> + <input name="query" /> + <button type="submit">Search</button> + </form> + ); +} +``` + +</Sandpack> + +<Note> + +Reading form data with `onSubmit` works in every version of React and gives you direct access to the [submit event](https://developer.mozilla.org/en-US/docs/Web/API/HTMLFormElement/submit_event), so you can call `e.preventDefault()` and read the data yourself. Passing the function to the `action` prop instead runs the submission in a [Transition](/reference/react/useTransition). React then tracks the pending state, sends thrown errors to the nearest error boundary, and lets the form work with [`useActionState`](/reference/react/useActionState) and [`useOptimistic`](/reference/react/useOptimistic). An `action` can also be a [Server Function](/reference/rsc/server-functions), which `onSubmit` does not support. + +</Note> + +### Handle form submission with an action prop {/*handle-form-submission-with-an-action-prop*/} + +Pass a function to the `action` prop of form to run the function when the form is submitted. [`formData`](https://developer.mozilla.org/en-US/docs/Web/API/FormData) will be passed to the function as an argument so you can access the data submitted by the form. This differs from the conventional [HTML action](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/form#action), which only accepts URLs. Unlike `onSubmit`, an `action` runs in a [Transition](/reference/react/useTransition) and calling `e.preventDefault()` isn't needed. After the `action` function succeeds, all uncontrolled field elements in the form are reset. <Sandpack> diff --git a/src/content/reference/react-dom/components/index.md b/src/content/reference/react-dom/components/index.md index 6bca8095d..deecbafce 100644 --- a/src/content/reference/react-dom/components/index.md +++ b/src/content/reference/react-dom/components/index.md @@ -205,7 +205,7 @@ root.render(<App />); export class MyElement extends HTMLElement { constructor() { super(); - // The value here will be overwritten by React + // The value here will be overwritten by React // when initialized as an element this.value = undefined; } diff --git a/src/content/reference/react-dom/components/input.md b/src/content/reference/react-dom/components/input.md index 17232ac1d..37ff14d98 100644 --- a/src/content/reference/react-dom/components/input.md +++ b/src/content/reference/react-dom/components/input.md @@ -212,7 +212,7 @@ export default function MyForm() { type="radio" name="myRadio" value="option2" - defaultChecked={true} + defaultChecked={true} /> Option 2 </label> diff --git a/src/content/reference/react-dom/components/link.md b/src/content/reference/react-dom/components/link.md index de7bec3cb..6d374807c 100644 --- a/src/content/reference/react-dom/components/link.md +++ b/src/content/reference/react-dom/components/link.md @@ -151,7 +151,7 @@ export default function SiteMapPage() { ### Controlling stylesheet precedence {/*controlling-stylesheet-precedence*/} -Stylesheets can conflict with each other, and when they do, the browser goes with the one that comes later in the document. React lets you control the order of stylesheets with the `precedence` prop. In this example, three components render stylesheets, and the ones with the same precedence are grouped together in the `<head>`. +Stylesheets can conflict with each other, and when they do, the browser goes with the one that comes later in the document. React lets you control the order of stylesheets with the `precedence` prop. In this example, three components render stylesheets, and the ones with the same precedence are grouped together in the `<head>`. <SandpackWithHTMLOutput> diff --git a/src/content/reference/react-dom/components/meta.md b/src/content/reference/react-dom/components/meta.md index 20412a32a..35a95c5aa 100644 --- a/src/content/reference/react-dom/components/meta.md +++ b/src/content/reference/react-dom/components/meta.md @@ -34,7 +34,7 @@ To add document metadata, render the [built-in browser `<meta>` component](https It should have *exactly one* of the following props: `name`, `httpEquiv`, `charset`, `itemProp`. The `<meta>` component does something different depending on which of these props is specified. -* `name`: a string. Specifies the [kind of metadata](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/meta/name) to be attached to the document. +* `name`: a string. Specifies the [kind of metadata](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/meta/name) to be attached to the document. * `charset`: a string. Specifies the character set used by the document. The only valid value is `"utf-8"`. * `httpEquiv`: a string. Specifies a directive for processing the document. * `itemProp`: a string. Specifies metadata about a particular item within the document rather than the document as a whole. @@ -42,9 +42,9 @@ It should have *exactly one* of the following props: `name`, `httpEquiv`, `chars #### Special rendering behavior {/*special-rendering-behavior*/} -React will always place the DOM element corresponding to the `<meta>` component within the document’s `<head>`, regardless of where in the React tree it is rendered. The `<head>` is the only valid place for `<meta>` to exist within the DOM, yet it’s convenient and keeps things composable if a component representing a specific page can render `<meta>` components itself. +React will always place the DOM element corresponding to the `<meta>` component within the document’s `<head>`, regardless of where in the React tree it is rendered. The `<head>` is the only valid place for `<meta>` to exist within the DOM, yet it’s convenient and keeps things composable if a component representing a specific page can render `<meta>` components itself. -There is one exception to this: if `<meta>` has an [`itemProp`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/itemprop) prop, there is no special behavior, because in this case it doesn’t represent metadata about the document but rather metadata about a specific part of the page. +There is one exception to this: if `<meta>` has an [`itemProp`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/itemprop) prop, there is no special behavior, because in this case it doesn’t represent metadata about the document but rather metadata about a specific part of the page. --- @@ -52,7 +52,7 @@ There is one exception to this: if `<meta>` has an [`itemProp`](https://develope ### Annotating the document with metadata {/*annotating-the-document-with-metadata*/} -You can annotate the document with metadata such as keywords, a summary, or the author’s name. React will place this metadata within the document `<head>` regardless of where in the React tree it is rendered. +You can annotate the document with metadata such as keywords, a summary, or the author’s name. React will place this metadata within the document `<head>` regardless of where in the React tree it is rendered. ```html <meta name="author" content="John Smith" /> @@ -83,7 +83,7 @@ export default function SiteMapPage() { ### Annotating specific items within the document with metadata {/*annotating-specific-items-within-the-document-with-metadata*/} -You can use the `<meta>` component with the `itemProp` prop to annotate specific items within the document with metadata. In this case, React will *not* place these annotations within the document `<head>` but will place them like any other React component. +You can use the `<meta>` component with the `itemProp` prop to annotate specific items within the document with metadata. In this case, React will *not* place these annotations within the document `<head>` but will place them like any other React component. ```js <section itemScope> diff --git a/src/content/reference/react-dom/components/option.md b/src/content/reference/react-dom/components/option.md index 8733e036f..163781103 100644 --- a/src/content/reference/react-dom/components/option.md +++ b/src/content/reference/react-dom/components/option.md @@ -79,5 +79,5 @@ export default function FruitPicker() { select { margin: 5px; } ``` -</Sandpack> +</Sandpack> diff --git a/src/content/reference/react-dom/components/script.md b/src/content/reference/react-dom/components/script.md index 6febd8465..06032a893 100644 --- a/src/content/reference/react-dom/components/script.md +++ b/src/content/reference/react-dom/components/script.md @@ -46,7 +46,7 @@ Other supported props: * `integrity`: a string. A cryptographic hash of the script, to [verify its authenticity](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity). * `noModule`: a boolean. Disables the script in browsers that support ES modules — allowing for a fallback script for browsers that do not. * `nonce`: a string. A cryptographic [nonce to allow the resource](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/nonce) when using a strict Content Security Policy. -* `referrer`: a string. Says [what Referer header to send](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script#referrerpolicy) when fetching the script and any resources that the script fetches in turn. +* `referrer`: a string. Says [what Referer header to send](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script#referrerpolicy) when fetching the script and any resources that the script fetches in turn. * `type`: a string. Says whether the script is a [classic script, ES module, or import map](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script/type). Props that disable React's [special treatment of scripts](#special-rendering-behavior): diff --git a/src/content/reference/react-dom/components/select.md b/src/content/reference/react-dom/components/select.md index f30dc53f4..72033ea0a 100644 --- a/src/content/reference/react-dom/components/select.md +++ b/src/content/reference/react-dom/components/select.md @@ -103,7 +103,7 @@ export default function FruitPicker() { select { margin: 5px; } ``` -</Sandpack> +</Sandpack> --- @@ -178,7 +178,7 @@ export default function FruitPicker() { select { margin: 5px; } ``` -</Sandpack> +</Sandpack> <Pitfall> diff --git a/src/content/reference/react-dom/components/title.md b/src/content/reference/react-dom/components/title.md index 9c6d85af8..9e4d8e65a 100644 --- a/src/content/reference/react-dom/components/title.md +++ b/src/content/reference/react-dom/components/title.md @@ -36,11 +36,11 @@ To specify the title of the document, render the [built-in browser `<title>` com #### Special rendering behavior {/*special-rendering-behavior*/} -React will always place the DOM element corresponding to the `<title>` component within the document’s `<head>`, regardless of where in the React tree it is rendered. The `<head>` is the only valid place for `<title>` to exist within the DOM, yet it’s convenient and keeps things composable if a component representing a specific page can render its `<title>` itself. +React will always place the DOM element corresponding to the `<title>` component within the document’s `<head>`, regardless of where in the React tree it is rendered. The `<head>` is the only valid place for `<title>` to exist within the DOM, yet it’s convenient and keeps things composable if a component representing a specific page can render its `<title>` itself. There are two exception to this: * If `<title>` is within an `<svg>` component, then there is no special behavior, because in this context it doesn’t represent the document’s title but rather is an [accessibility annotation for that SVG graphic](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/title). -* If the `<title>` has an [`itemProp`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/itemprop) prop, there is no special behavior, because in this case it doesn’t represent the document’s title but rather metadata about a specific part of the page. +* If the `<title>` has an [`itemProp`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/itemprop) prop, there is no special behavior, because in this case it doesn’t represent the document’s title but rather metadata about a specific part of the page. <Pitfall> diff --git a/src/content/reference/react-dom/hooks/useFormStatus.md b/src/content/reference/react-dom/hooks/useFormStatus.md index 0fc83e3e1..7517d8ae2 100644 --- a/src/content/reference/react-dom/hooks/useFormStatus.md +++ b/src/content/reference/react-dom/hooks/useFormStatus.md @@ -40,7 +40,7 @@ export default function App() { } ``` -To get status information, the `Submit` component must be rendered within a `<form>`. The Hook returns information like the <CodeStep step={1}>`pending`</CodeStep> property which tells you if the form is actively submitting. +To get status information, the `Submit` component must be rendered within a `<form>`. The Hook returns information like the <CodeStep step={1}>`pending`</CodeStep> property which tells you if the form is actively submitting. In the above example, `Submit` uses this information to disable `<button>` presses while the form is submitting. @@ -65,7 +65,7 @@ A `status` object with the following properties: #### Caveats {/*caveats*/} -* The `useFormStatus` Hook must be called from a component that is rendered inside a `<form>`. +* The `useFormStatus` Hook must be called from a component that is rendered inside a `<form>`. * `useFormStatus` will only return status information for a parent `<form>`. It will not return status information for any `<form>` rendered in that same component or children components. --- @@ -75,7 +75,7 @@ A `status` object with the following properties: ### Display a pending state during form submission {/*display-a-pending-state-during-form-submission*/} To display a pending state while a form is submitting, you can call the `useFormStatus` Hook in a component rendered in a `<form>` and read the `pending` property returned. -Here, we use the `pending` property to indicate the form is submitting. +Here, we use the `pending` property to indicate the form is submitting. <Sandpack> @@ -110,7 +110,7 @@ export async function submitForm(query) { await new Promise((res) => setTimeout(res, 1000)); } ``` -</Sandpack> +</Sandpack> <Pitfall> @@ -132,7 +132,7 @@ Instead call `useFormStatus` from inside a component that is located inside `<fo ```js function Submit() { // ✅ `pending` will be derived from the form that wraps the Submit component - const { pending } = useFormStatus(); + const { pending } = useFormStatus(); return <button disabled={pending}>...</button>; } @@ -215,7 +215,7 @@ button { ``` -</Sandpack> +</Sandpack> --- @@ -223,7 +223,7 @@ button { ### `status.pending` is never `true` {/*pending-is-never-true*/} -`useFormStatus` will only return status information for a parent `<form>`. +`useFormStatus` will only return status information for a parent `<form>`. If the component that calls `useFormStatus` is not nested in a `<form>`, `status.pending` will always return `false`. Verify `useFormStatus` is called in a component that is a child of a `<form>` element. diff --git a/src/content/reference/react-dom/preconnect.md b/src/content/reference/react-dom/preconnect.md index 047b1fcac..f28de8776 100644 --- a/src/content/reference/react-dom/preconnect.md +++ b/src/content/reference/react-dom/preconnect.md @@ -34,7 +34,7 @@ function AppRoot() { [See more examples below.](#usage) -The `preconnect` function provides the browser with a hint that it should open a connection to the given server. If the browser chooses to do so, this can speed up the loading of resources from that server. +The `preconnect` function provides the browser with a hint that it should open a connection to the given server. If the browser chooses to do so, this can speed up the loading of resources from that server. #### Parameters {/*parameters*/} diff --git a/src/content/reference/react-dom/prefetchDNS.md b/src/content/reference/react-dom/prefetchDNS.md index ef11aa3e5..c9229bba2 100644 --- a/src/content/reference/react-dom/prefetchDNS.md +++ b/src/content/reference/react-dom/prefetchDNS.md @@ -34,7 +34,7 @@ function AppRoot() { [See more examples below.](#usage) -The prefetchDNS function provides the browser with a hint that it should look up the IP address of a given server. If the browser chooses to do so, this can speed up the loading of resources from that server. +The prefetchDNS function provides the browser with a hint that it should look up the IP address of a given server. If the browser chooses to do so, this can speed up the loading of resources from that server. #### Parameters {/*parameters*/} diff --git a/src/content/reference/react-dom/preinit.md b/src/content/reference/react-dom/preinit.md index 5dcaaf933..d9f3808c4 100644 --- a/src/content/reference/react-dom/preinit.md +++ b/src/content/reference/react-dom/preinit.md @@ -47,10 +47,10 @@ The `preinit` function provides the browser with a hint that it should start dow * `href`: a string. The URL of the resource you want to download and execute. * `options`: an object. It contains the following properties: * `as`: a required string. The type of resource. Its possible values are `script` and `style`. - * `precedence`: a string. Required with stylesheets. Says where to insert the stylesheet relative to others. Stylesheets with higher precedence can override those with lower precedence. The possible values are `reset`, `low`, `medium`, `high`. + * `precedence`: a string. Required with stylesheets. Says where to insert the stylesheet relative to others. Stylesheets with higher precedence can override those with lower precedence. The possible values are `reset`, `low`, `medium`, `high`. * `crossOrigin`: a string. The [CORS policy](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/crossorigin) to use. Its possible values are `anonymous` and `use-credentials`. * `integrity`: a string. A cryptographic hash of the resource, to [verify its authenticity](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity). - * `nonce`: a string. A cryptographic [nonce to allow the resource](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/nonce) when using a strict Content Security Policy. + * `nonce`: a string. A cryptographic [nonce to allow the resource](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/nonce) when using a strict Content Security Policy. * `fetchPriority`: a string. Suggests a relative priority for fetching the resource. The possible values are `auto` (the default), `high`, and `low`. #### Returns {/*returns*/} diff --git a/src/content/reference/react-dom/preinitModule.md b/src/content/reference/react-dom/preinitModule.md index 93a4a730f..72c443291 100644 --- a/src/content/reference/react-dom/preinitModule.md +++ b/src/content/reference/react-dom/preinitModule.md @@ -49,7 +49,7 @@ The `preinitModule` function provides the browser with a hint that it should sta * `as`: a required string. It must be `'script'`. * `crossOrigin`: a string. The [CORS policy](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/crossorigin) to use. Its possible values are `anonymous` and `use-credentials`. * `integrity`: a string. A cryptographic hash of the module, to [verify its authenticity](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity). - * `nonce`: a string. A cryptographic [nonce to allow the module](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/nonce) when using a strict Content Security Policy. + * `nonce`: a string. A cryptographic [nonce to allow the module](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/nonce) when using a strict Content Security Policy. #### Returns {/*returns*/} diff --git a/src/content/reference/react-dom/preload.md b/src/content/reference/react-dom/preload.md index e9d00fc60..5d625d236 100644 --- a/src/content/reference/react-dom/preload.md +++ b/src/content/reference/react-dom/preload.md @@ -51,7 +51,7 @@ The `preload` function provides the browser with a hint that it should start dow * `referrerPolicy`: a string. The [Referrer header](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/link#referrerpolicy) to send when fetching. Its possible values are `no-referrer-when-downgrade` (the default), `no-referrer`, `origin`, `origin-when-cross-origin`, and `unsafe-url`. * `integrity`: a string. A cryptographic hash of the resource, to [verify its authenticity](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity). * `type`: a string. The MIME type of the resource. - * `nonce`: a string. A cryptographic [nonce to allow the resource](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/nonce) when using a strict Content Security Policy. + * `nonce`: a string. A cryptographic [nonce to allow the resource](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/nonce) when using a strict Content Security Policy. * `fetchPriority`: a string. Suggests a relative priority for fetching the resource. The possible values are `auto` (the default), `high`, and `low`. * `imageSrcSet`: a string. For use only with `as: "image"`. Specifies the [source set of the image](https://developer.mozilla.org/en-US/docs/Learn/HTML/Multimedia_and_embedding/Responsive_images). * `imageSizes`: a string. For use only with `as: "image"`. Specifies the [sizes of the image](https://developer.mozilla.org/en-US/docs/Learn/HTML/Multimedia_and_embedding/Responsive_images). diff --git a/src/content/reference/react-dom/preloadModule.md b/src/content/reference/react-dom/preloadModule.md index 944d438fc..c26b4878f 100644 --- a/src/content/reference/react-dom/preloadModule.md +++ b/src/content/reference/react-dom/preloadModule.md @@ -49,7 +49,7 @@ The `preloadModule` function provides the browser with a hint that it should sta * `as`: a required string. It must be `'script'`. * `crossOrigin`: a string. The [CORS policy](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/crossorigin) to use. Its possible values are `anonymous` and `use-credentials`. * `integrity`: a string. A cryptographic hash of the module, to [verify its authenticity](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity). - * `nonce`: a string. A cryptographic [nonce to allow the module](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/nonce) when using a strict Content Security Policy. + * `nonce`: a string. A cryptographic [nonce to allow the module](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/nonce) when using a strict Content Security Policy. #### Returns {/*returns*/} diff --git a/src/content/reference/react-dom/server/renderToPipeableStream.md b/src/content/reference/react-dom/server/renderToPipeableStream.md index 9a460f6c6..3c6237b12 100644 --- a/src/content/reference/react-dom/server/renderToPipeableStream.md +++ b/src/content/reference/react-dom/server/renderToPipeableStream.md @@ -48,6 +48,7 @@ Client-side এ, server-generated HTML কে ইন্টার‍্যাক * `reactNode`: একটি React নোড যেটিকে আপনি HTML এ রেন্ডার করতে চান। উদাহরণস্বরূপ, `<App />` এর মতো একটি JSX element । এটা প্রত্যাশিত যে, এটি পুরো ডকুমেন্ট কে ধারণ করবে, তাই `App` কম্পোনেন্টটির `<html>` ট্যাগ রেন্ডার করার কথা। +<<<<<<< HEAD * **optional** `options`: একটি object যাতে streaming options থাকবে। * **optional** `bootstrapScriptContent`: যদি প্রদান করা হয়, তাহলে এই string টি একটি inline `<script>` tag এ থাকবে। * **optional** `bootstrapScripts`: page এ emit করার জন্য `<script>` tag এর string URL গুলোর একটি array। [`hydrateRoot`](/reference/react-dom/client/hydrateRoot) কল করে এমন `<script>` include করতে এটি ব্যবহার করুন। যদি আপনি client এ একেবারেই React রান করতে না চান তাহলে এটি বাদ দিন। @@ -60,6 +61,20 @@ Client-side এ, server-generated HTML কে ইন্টার‍্যাক * **optional** `onShellReady`: একটি callback যেটি [initial shell](#specifying-what-goes-into-the-shell) render হওয়ার ঠিক পরেই ফায়ার হয়। আপনি এখানে [status code set করতে](#setting-the-status-code) এবং streaming শুরু করতে `pipe` কল করতে পারেন। React shell এর পর [অতিরিক্ত content stream করবে](#streaming-more-content-as-it-loads) inline `<script>` tag সহ যেগুলো HTML loading fallback গুলোকে content দিয়ে replace করে। * **optional** `onShellError`: একটি callback যেটি initial shell render করতে error হলে ফায়ার হয়। এটি error কে argument হিসেবে receive করে। এখনো stream থেকে কোনো byte emit হয়নি, এবং `onShellReady` বা `onAllReady` কোনোটিই call হবে না, তাই আপনি [একটি fallback HTML shell output করতে পারেন](#recovering-from-errors-inside-the-shell)। * **optional** `progressiveChunkSize`: একটি chunk এ byte এর সংখ্যা। [default heuristic সম্পর্কে আরো পড়ুন।](https://github.com/facebook/react/blob/14c2be8dac2d5482fda8a0906a31d239df8551fc/packages/react-server/src/ReactFizzServer.js#L210-L225) +======= +* **optional** `options`: An object with streaming options. + * **optional** `bootstrapScriptContent`: If specified, this string will be placed in an inline `<script>` tag. + * **optional** `bootstrapScripts`: An array of string URLs for the `<script>` tags to emit on the page. Use this to include the `<script>` that calls [`hydrateRoot`.](/reference/react-dom/client/hydrateRoot) Omit it if you don't want to run React on the client at all. + * **optional** `bootstrapModules`: Like `bootstrapScripts`, but emits [`<script type="module">`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules) instead. + * **optional** `identifierPrefix`: A string prefix React uses for IDs generated by [`useId`.](/reference/react/useId) Useful to avoid conflicts when using multiple roots on the same page. Must be the same prefix as passed to [`hydrateRoot`.](/reference/react-dom/client/hydrateRoot#parameters) + * **optional** `namespaceURI`: A string with the root [namespace URI](https://developer.mozilla.org/en-US/docs/Web/API/Document/createElementNS#important_namespace_uris) for the stream. Defaults to regular HTML. Pass `'http://www.w3.org/2000/svg'` for SVG or `'http://www.w3.org/1998/Math/MathML'` for MathML. + * **optional** `nonce`: A [`nonce`](http://developer.mozilla.org/en-US/docs/Web/HTML/Element/script#nonce) string to allow scripts for [`script-src` Content-Security-Policy](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src). + * **optional** `onAllReady`: A callback that fires when all rendering is complete, including both the [shell](#specifying-what-goes-into-the-shell) and all additional [content.](#streaming-more-content-as-it-loads) You can use this instead of `onShellReady` [for crawlers and static generation.](#waiting-for-all-content-to-load-for-crawlers-and-static-generation) If you start streaming here, you won't get any progressive loading. The stream will contain the final HTML. + * **optional** `onError`: A callback that fires whenever there is a server error, whether [recoverable](#recovering-from-errors-outside-the-shell) or [not.](#recovering-from-errors-inside-the-shell) By default, this only calls `console.error`. If you override it to [log crash reports,](#logging-crashes-on-the-server) make sure that you still call `console.error`. You can also use it to [adjust the status code](#setting-the-status-code) before the shell is emitted. + * **optional** `onShellReady`: A callback that fires right after the [initial shell](#specifying-what-goes-into-the-shell) has been rendered. You can [set the status code](#setting-the-status-code) and call `pipe` here to start streaming. React will [stream the additional content](#streaming-more-content-as-it-loads) after the shell along with the inline `<script>` tags that replace the HTML loading fallbacks with the content. + * **optional** `onShellError`: A callback that fires if there was an error rendering the initial shell. It receives the error as an argument. No bytes were emitted from the stream yet, and neither `onShellReady` nor `onAllReady` will get called, so you can [output a fallback HTML shell.](#recovering-from-errors-inside-the-shell) + * **optional** `progressiveChunkSize`: The number of bytes in a chunk. [Read more about the default heuristic.](https://github.com/react/react/blob/14c2be8dac2d5482fda8a0906a31d239df8551fc/packages/react-server/src/ReactFizzServer.js#L210-L225) +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca #### রিটার্নস {/*returns*/} @@ -284,6 +299,7 @@ Streaming এর React নিজে browser এ load হওয়ার জন <Note> +<<<<<<< HEAD **শুধুমাত্র Suspense-enabled ডাটা সোর্সগুলো Suspense component কে activate করবে।** এগুলোর মধ্যে রয়েছে: - [Relay](https://relay.dev/docs/guided-tour/rendering/loading-states/) এবং [Next.js](https://nextjs.org/docs/getting-started/react-essentials) এর মতো Suspense-enabled ফ্রেমওয়ার্ক দিয়ে ডাটা ফেচিং @@ -295,6 +311,9 @@ Streaming এর React নিজে browser এ load হওয়ার জন উপরের `Posts` component এ আপনি ঠিক কিভাবে data load করবেন তা আপনার framework এর উপর নির্ভর করে। যদি আপনি একটি Suspense-enabled framework ব্যবহার করেন, তাহলে আপনি তার data fetching documentation এ বিস্তারিত তথ্য পাবেন। Opinionated framework ব্যবহার ছাড়া Suspense-enabled ডাটা ফেচিং এখনো সাপোর্টেড না। Suspense-enabled ডাটা সোর্স implement করার requirement গুলো unstable এবং undocumented। Suspense এর সাথে ডাটা সোর্স integrate করার জন্য একটি official API রিয়েক্টের ভবিষ্যৎ ভার্সনে রিলিজ হবে। +======= +Only data read from a source that [activates a Suspense boundary](/reference/react/Suspense#what-activates-a-suspense-boundary), such as a Promise read with [`use`](/reference/react/use), will suspend during rendering. Suspense does not detect data fetched inside an Effect or event handler. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca </Note> @@ -401,7 +420,7 @@ const { pipe } = renderToPipeableStream(<App />, { onShellError(error) { response.statusCode = 500; response.setHeader('content-type', 'text/html'); - response.send('<h1>Something went wrong</h1>'); + response.send('<h1>Something went wrong</h1>'); }, onError(error) { console.error(error); @@ -460,7 +479,7 @@ const { pipe } = renderToPipeableStream(<App />, { onShellError(error) { response.statusCode = 500; response.setHeader('content-type', 'text/html'); - response.send('<h1>Something went wrong</h1>'); + response.send('<h1>Something went wrong</h1>'); }, onError(error) { console.error(error); @@ -486,7 +505,7 @@ const { pipe } = renderToPipeableStream(<App />, { onShellError(error) { response.statusCode = 500; response.setHeader('content-type', 'text/html'); - response.send('<h1>Something went wrong</h1>'); + response.send('<h1>Something went wrong</h1>'); }, onError(error) { didError = true; @@ -530,7 +549,7 @@ const { pipe } = renderToPipeableStream(<App />, { onShellError(error) { response.statusCode = getStatusCode(); response.setHeader('content-type', 'text/html'); - response.send('<h1>Something went wrong</h1>'); + response.send('<h1>Something went wrong</h1>'); }, onError(error) { didError = true; @@ -570,13 +589,13 @@ const { pipe } = renderToPipeableStream(<App />, { onShellError(error) { response.statusCode = 500; response.setHeader('content-type', 'text/html'); - response.send('<h1>Something went wrong</h1>'); + response.send('<h1>Something went wrong</h1>'); }, onAllReady() { if (isCrawler) { response.statusCode = didError ? 500 : 200; response.setHeader('content-type', 'text/html'); - pipe(response); + pipe(response); } }, onError(error) { diff --git a/src/content/reference/react-dom/server/renderToReadableStream.md b/src/content/reference/react-dom/server/renderToReadableStream.md index f4ed54ce2..7bbef4cd5 100644 --- a/src/content/reference/react-dom/server/renderToReadableStream.md +++ b/src/content/reference/react-dom/server/renderToReadableStream.md @@ -57,7 +57,7 @@ On the client, call [`hydrateRoot`](/reference/react-dom/client/hydrateRoot) to * **optional** `namespaceURI`: A string with the root [namespace URI](https://developer.mozilla.org/en-US/docs/Web/API/Document/createElementNS#important_namespace_uris) for the stream. Defaults to regular HTML. Pass `'http://www.w3.org/2000/svg'` for SVG or `'http://www.w3.org/1998/Math/MathML'` for MathML. * **optional** `nonce`: A [`nonce`](http://developer.mozilla.org/en-US/docs/Web/HTML/Element/script#nonce) string to allow scripts for [`script-src` Content-Security-Policy](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src). * **optional** `onError`: A callback that fires whenever there is a server error, whether [recoverable](#recovering-from-errors-outside-the-shell) or [not.](#recovering-from-errors-inside-the-shell) By default, this only calls `console.error`. If you override it to [log crash reports,](#logging-crashes-on-the-server) make sure that you still call `console.error`. You can also use it to [adjust the status code](#setting-the-status-code) before the shell is emitted. - * **optional** `progressiveChunkSize`: The number of bytes in a chunk. [Read more about the default heuristic.](https://github.com/facebook/react/blob/14c2be8dac2d5482fda8a0906a31d239df8551fc/packages/react-server/src/ReactFizzServer.js#L210-L225) + * **optional** `progressiveChunkSize`: The number of bytes in a chunk. [Read more about the default heuristic.](https://github.com/react/react/blob/14c2be8dac2d5482fda8a0906a31d239df8551fc/packages/react-server/src/ReactFizzServer.js#L210-L225) * **optional** `signal`: An [abort signal](https://developer.mozilla.org/en-US/docs/Web/API/AbortSignal) that lets you [abort server rendering](#aborting-server-rendering) and render the rest on the client. @@ -283,17 +283,7 @@ Streaming does not need to wait for React itself to load in the browser, or for <Note> -**Only Suspense-enabled data sources will activate the Suspense component.** They include: - -- Data fetching with Suspense-enabled frameworks like [Relay](https://relay.dev/docs/guided-tour/rendering/loading-states/) and [Next.js](https://nextjs.org/docs/getting-started/react-essentials) -- Lazy-loading component code with [`lazy`](/reference/react/lazy) -- Reading the value of a Promise with [`use`](/reference/react/use) - -Suspense **does not** detect when data is fetched inside an Effect or event handler. - -The exact way you would load data in the `Posts` component above depends on your framework. If you use a Suspense-enabled framework, you'll find the details in its data fetching documentation. - -Suspense-enabled data fetching without the use of an opinionated framework is not yet supported. The requirements for implementing a Suspense-enabled data source are unstable and undocumented. An official API for integrating data sources with Suspense will be released in a future version of React. +Only data read from a source that [activates a Suspense boundary](/reference/react/Suspense#what-activates-a-suspense-boundary), such as a Promise read with [`use`](/reference/react/use), will suspend during rendering. Suspense does not detect data fetched inside an Effect or event handler. </Note> diff --git a/src/content/reference/react-dom/server/resume.md b/src/content/reference/react-dom/server/resume.md index 17b48b2ac..ad61f6da5 100644 --- a/src/content/reference/react-dom/server/resume.md +++ b/src/content/reference/react-dom/server/resume.md @@ -75,7 +75,7 @@ The returned stream has an additional property: <Sandpack> -```js src/App.js hidden +```js src/App.js hidden ``` ```html public/index.html diff --git a/src/content/reference/react-dom/static/prerender.md b/src/content/reference/react-dom/static/prerender.md index 8ad47aa15..811e5fc60 100644 --- a/src/content/reference/react-dom/static/prerender.md +++ b/src/content/reference/react-dom/static/prerender.md @@ -56,7 +56,7 @@ On the client, call [`hydrateRoot`](/reference/react-dom/client/hydrateRoot) to * **optional** `identifierPrefix`: A string prefix React uses for IDs generated by [`useId`.](/reference/react/useId) Useful to avoid conflicts when using multiple roots on the same page. Must be the same prefix as passed to [`hydrateRoot`.](/reference/react-dom/client/hydrateRoot#parameters) * **optional** `namespaceURI`: A string with the root [namespace URI](https://developer.mozilla.org/en-US/docs/Web/API/Document/createElementNS#important_namespace_uris) for the stream. Defaults to regular HTML. Pass `'http://www.w3.org/2000/svg'` for SVG or `'http://www.w3.org/1998/Math/MathML'` for MathML. * **optional** `onError`: A callback that fires whenever there is a server error, whether [recoverable](/reference/react-dom/server/renderToReadableStream#recovering-from-errors-outside-the-shell) or [not.](/reference/react-dom/server/renderToReadableStream#recovering-from-errors-inside-the-shell) By default, this only calls `console.error`. If you override it to [log crash reports,](/reference/react-dom/server/renderToReadableStream#logging-crashes-on-the-server) make sure that you still call `console.error`. You can also use it to [adjust the status code](/reference/react-dom/server/renderToReadableStream#setting-the-status-code) before the shell is emitted. - * **optional** `progressiveChunkSize`: The number of bytes in a chunk. [Read more about the default heuristic.](https://github.com/facebook/react/blob/14c2be8dac2d5482fda8a0906a31d239df8551fc/packages/react-server/src/ReactFizzServer.js#L210-L225) + * **optional** `progressiveChunkSize`: The number of bytes in a chunk. [Read more about the default heuristic.](https://github.com/react/react/blob/14c2be8dac2d5482fda8a0906a31d239df8551fc/packages/react-server/src/ReactFizzServer.js#L210-L225) * **optional** `signal`: An [abort signal](https://developer.mozilla.org/en-US/docs/Web/API/AbortSignal) that lets you [abort prerendering](#aborting-prerendering) and render the rest on the client. #### Returns {/*returns*/} @@ -275,17 +275,7 @@ Imagine that `<Posts />` needs to load some data, which takes some time. Ideally <Note> -**Only Suspense-enabled data sources will activate the Suspense component.** They include: - -- Data fetching with Suspense-enabled frameworks like [Relay](https://relay.dev/docs/guided-tour/rendering/loading-states/) and [Next.js](https://nextjs.org/docs/getting-started/react-essentials) -- Lazy-loading component code with [`lazy`](/reference/react/lazy) -- Reading the value of a Promise with [`use`](/reference/react/use) - -Suspense **does not** detect when data is fetched inside an Effect or event handler. - -The exact way you would load data in the `Posts` component above depends on your framework. If you use a Suspense-enabled framework, you'll find the details in its data fetching documentation. - -Suspense-enabled data fetching without the use of an opinionated framework is not yet supported. The requirements for implementing a Suspense-enabled data source are unstable and undocumented. An official API for integrating data sources with Suspense will be released in a future version of React. +Only data read from a source that [activates a Suspense boundary](/reference/react/Suspense#what-activates-a-suspense-boundary), such as a Promise read with [`use`](/reference/react/use), will suspend during rendering. Suspense does not detect data fetched inside an Effect or event handler. </Note> diff --git a/src/content/reference/react-dom/static/prerenderToNodeStream.md b/src/content/reference/react-dom/static/prerenderToNodeStream.md index 7a31f66a1..040357b2e 100644 --- a/src/content/reference/react-dom/static/prerenderToNodeStream.md +++ b/src/content/reference/react-dom/static/prerenderToNodeStream.md @@ -57,7 +57,7 @@ On the client, call [`hydrateRoot`](/reference/react-dom/client/hydrateRoot) to * **optional** `identifierPrefix`: A string prefix React uses for IDs generated by [`useId`.](/reference/react/useId) Useful to avoid conflicts when using multiple roots on the same page. Must be the same prefix as passed to [`hydrateRoot`.](/reference/react-dom/client/hydrateRoot#parameters) * **optional** `namespaceURI`: A string with the root [namespace URI](https://developer.mozilla.org/en-US/docs/Web/API/Document/createElementNS#important_namespace_uris) for the stream. Defaults to regular HTML. Pass `'http://www.w3.org/2000/svg'` for SVG or `'http://www.w3.org/1998/Math/MathML'` for MathML. * **optional** `onError`: A callback that fires whenever there is a server error, whether [recoverable](/reference/react-dom/server/renderToPipeableStream#recovering-from-errors-outside-the-shell) or [not.](/reference/react-dom/server/renderToPipeableStream#recovering-from-errors-inside-the-shell) By default, this only calls `console.error`. If you override it to [log crash reports,](/reference/react-dom/server/renderToPipeableStream#logging-crashes-on-the-server) make sure that you still call `console.error`. You can also use it to [adjust the status code](/reference/react-dom/server/renderToPipeableStream#setting-the-status-code) before the shell is emitted. - * **optional** `progressiveChunkSize`: The number of bytes in a chunk. [Read more about the default heuristic.](https://github.com/facebook/react/blob/14c2be8dac2d5482fda8a0906a31d239df8551fc/packages/react-server/src/ReactFizzServer.js#L210-L225) + * **optional** `progressiveChunkSize`: The number of bytes in a chunk. [Read more about the default heuristic.](https://github.com/react/react/blob/14c2be8dac2d5482fda8a0906a31d239df8551fc/packages/react-server/src/ReactFizzServer.js#L210-L225) * **optional** `signal`: An [abort signal](https://developer.mozilla.org/en-US/docs/Web/API/AbortSignal) that lets you [abort prerendering](#aborting-prerendering) and render the rest on the client. #### Returns {/*returns*/} @@ -276,17 +276,7 @@ Imagine that `<Posts />` needs to load some data, which takes some time. Ideally <Note> -**Only Suspense-enabled data sources will activate the Suspense component.** They include: - -- Data fetching with Suspense-enabled frameworks like [Relay](https://relay.dev/docs/guided-tour/rendering/loading-states/) and [Next.js](https://nextjs.org/docs/getting-started/react-essentials) -- Lazy-loading component code with [`lazy`](/reference/react/lazy) -- Reading the value of a Promise with [`use`](/reference/react/use) - -Suspense **does not** detect when data is fetched inside an Effect or event handler. - -The exact way you would load data in the `Posts` component above depends on your framework. If you use a Suspense-enabled framework, you'll find the details in its data fetching documentation. - -Suspense-enabled data fetching without the use of an opinionated framework is not yet supported. The requirements for implementing a Suspense-enabled data source are unstable and undocumented. An official API for integrating data sources with Suspense will be released in a future version of React. +Only data read from a source that [activates a Suspense boundary](/reference/react/Suspense#what-activates-a-suspense-boundary), such as a Promise read with [`use`](/reference/react/use), will suspend during rendering. Suspense does not detect data fetched inside an Effect or event handler. </Note> diff --git a/src/content/reference/react/Activity.md b/src/content/reference/react/Activity.md index b79bed9e2..b521970b7 100644 --- a/src/content/reference/react/Activity.md +++ b/src/content/reference/react/Activity.md @@ -43,7 +43,7 @@ In this way, Activity can be thought of as a mechanism for rendering "background #### Props {/*props*/} * `children`: The UI you intend to show and hide. -* `mode`: A string value of either `'visible'` or `'hidden'`. If omitted, defaults to `'visible'`. +* `mode`: A string value of either `'visible'` or `'hidden'`. If omitted, defaults to `'visible'`. #### Caveats {/*caveats*/} @@ -111,7 +111,7 @@ import { useState } from 'react'; export default function Sidebar() { const [isExpanded, setIsExpanded] = useState(false) - + return ( <nav> <button onClick={() => setIsExpanded(!isExpanded)}> @@ -219,7 +219,7 @@ import { useState } from 'react'; export default function Sidebar() { const [isExpanded, setIsExpanded] = useState(false) - + return ( <nav> <button onClick={() => setIsExpanded(!isExpanded)}> @@ -287,7 +287,7 @@ In this example, the Contact tab has a `<textarea>` where the user can enter a m <Sandpack> -```js src/App.js +```js src/App.js import { useState } from 'react'; import TabButton from './TabButton.js'; import Home from './Home.js'; @@ -434,7 +434,7 @@ export default function Home() { } ``` -```js src/Contact.js +```js src/Contact.js export default function Contact() { return ( <div> @@ -755,17 +755,7 @@ Pre-rendering components with hidden Activity boundaries is a powerful way to re <Note> -**Only Suspense-enabled data sources will be fetched during pre-rendering.** They include: - -- Data fetching with Suspense-enabled frameworks like [Relay](https://relay.dev/docs/guided-tour/rendering/loading-states/) and [Next.js](https://nextjs.org/docs/app/building-your-application/routing/loading-ui-and-streaming#streaming-with-suspense) -- Lazy-loading component code with [`lazy`](/reference/react/lazy) -- Reading the value of a cached Promise with [`use`](/reference/react/use) - -Activity **does not** detect data that is fetched inside an Effect. - -The exact way you would load data in the `Posts` component above depends on your framework. If you use a Suspense-enabled framework, you'll find the details in its data fetching documentation. - -Suspense-enabled data fetching without the use of an opinionated framework is not yet supported. The requirements for implementing a Suspense-enabled data source are unstable and undocumented. An official API for integrating data sources with Suspense will be released in a future version of React. +Only data read from a source that [activates a Suspense boundary](/reference/react/Suspense#what-activates-a-suspense-boundary), such as a Promise read with [`use`](/reference/react/use), is fetched during pre-rendering. Activity does not detect data fetched inside an Effect. </Note> @@ -903,7 +893,7 @@ function Page() { </Activity> </> ); -} +} ``` --- @@ -975,7 +965,7 @@ export default function Home() { } ``` -```js src/Video.js +```js src/Video.js export default function Video() { return ( <video @@ -1068,7 +1058,7 @@ export default function Home() { } ``` -```js src/Video.js +```js src/Video.js export default function Video() { return ( <video @@ -1185,7 +1175,7 @@ export default function Home() { } ``` -```js src/Video.js +```js src/Video.js import { useRef, useLayoutEffect } from 'react'; export default function Video() { @@ -1238,7 +1228,7 @@ The most common cases of this will be from the following tags: Typically, though, most of your React components should already be robust to being hidden by an Activity boundary. And conceptually, you should think of "hidden" Activities as being unmounted. -To eagerly discover other Effects that don't have proper cleanup, which is important not only for Activity boundaries but for many other behaviors in React, we recommend using [`<StrictMode>`](/reference/react/StrictMode). +To eagerly discover other Effects that don't have proper cleanup, which is important not only for Activity boundaries but for many other behaviors in React, we recommend using [`<StrictMode>`](/reference/react/StrictMode). --- @@ -1249,4 +1239,4 @@ When an `<Activity>` is "hidden", all its children's Effects are cleaned up. Con If you're relying on an Effect mounting to clean up a component's side effects, refactor the Effect to do the work in the returned cleanup function instead. -To eagerly find problematic Effects, we recommend adding [`<StrictMode>`](/reference/react/StrictMode) which will eagerly perform Activity unmounts and mounts to catch any unexpected side-effects. +To eagerly find problematic Effects, we recommend adding [`<StrictMode>`](/reference/react/StrictMode) which will eagerly perform Activity unmounts and mounts to catch any unexpected side-effects. diff --git a/src/content/reference/react/Children.md b/src/content/reference/react/Children.md index 81a28c5b3..3647b1eed 100644 --- a/src/content/reference/react/Children.md +++ b/src/content/reference/react/Children.md @@ -492,7 +492,7 @@ As mentioned earlier, there is no way to get the rendered output of an inner com ### Converting children to an array {/*converting-children-to-an-array*/} -Call `Children.toArray(children)` to turn the `children` data structure into a regular JavaScript array. This lets you manipulate the array with built-in array methods like [`filter`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter), [`sort`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort), or [`reverse`.](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reverse) +Call `Children.toArray(children)` to turn the `children` data structure into a regular JavaScript array. This lets you manipulate the array with built-in array methods like [`filter`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter), [`sort`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort), or [`reverse`.](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reverse) <Sandpack> @@ -861,7 +861,7 @@ export default function App() { return ( <Row isHighlighted={index % 2 === 0}> <p>This is the {id} item.</p> - </Row> + </Row> ); }} /> diff --git a/src/content/reference/react/Component.md b/src/content/reference/react/Component.md index 2509aa759..f6c8cc4bf 100644 --- a/src/content/reference/react/Component.md +++ b/src/content/reference/react/Component.md @@ -117,7 +117,7 @@ class Counter extends Component { handleAgeChange = () => { this.setState({ - age: this.state.age + 1 + age: this.state.age + 1 }); }; @@ -724,7 +724,7 @@ Return `false` to tell React that re-rendering can be skipped. #### Caveats {/*shouldcomponentupdate-caveats*/} -- This method *only* exists as a performance optimization. If your component breaks without it, fix that first. +- This method *only* exists as a performance optimization. If your component breaks without it, fix that first. - Consider using [`PureComponent`](/reference/react/PureComponent) instead of writing `shouldComponentUpdate` by hand. `PureComponent` shallowly compares props and state, and reduces the chance that you'll skip a necessary update. @@ -1009,7 +1009,7 @@ Deriving state leads to verbose code and makes your components difficult to thin #### Caveats {/*static-getderivedstatefromprops-caveats*/} -- This method is fired on *every* render, regardless of the cause. This is different from [`UNSAFE_componentWillReceiveProps`](#unsafe_cmoponentwillreceiveprops), which only fires when the parent causes a re-render and not as a result of a local `setState`. +- This method is fired on *every* render, regardless of the cause. This is different from [`UNSAFE_componentWillReceiveProps`](#unsafe_componentwillreceiveprops), which only fires when the parent causes a re-render and not as a result of a local `setState`. - This method doesn't have access to the component instance. If you'd like, you can reuse some code between `static getDerivedStateFromProps` and the other class methods by extracting pure functions of the component props and state outside the class definition. @@ -1098,7 +1098,7 @@ export default class Counter extends Component { handleAgeChange = () => { this.setState({ - age: this.state.age + 1 + age: this.state.age + 1 }); }; @@ -1123,7 +1123,7 @@ export default class Counter extends Component { button { display: block; margin-top: 10px; } ``` -</Sandpack> +</Sandpack> <Pitfall> @@ -1207,7 +1207,7 @@ export default class ChatRoom extends Component { this.state.serverUrl, this.props.roomId ); - this.connection.connect(); + this.connection.connect(); } destroyConnection() { @@ -1275,7 +1275,7 @@ By default, if your application throws an error during rendering, React will rem Error boundaries do not catch errors for: - Event handlers [(learn more)](/learn/responding-to-events) -- [Server side rendering](/reference/react-dom/server) +- [Server side rendering](/reference/react-dom/server) - Errors thrown in the error boundary itself (rather than its children) - Asynchronous code (e.g. `setTimeout` or `requestAnimationFrame` callbacks); an exception is the usage of the [`startTransition`](/reference/react/useTransition#starttransition) function returned by the [`useTransition`](/reference/react/useTransition) Hook. Errors thrown inside the transition function are caught by error boundaries [(learn more)](/reference/react/useTransition#displaying-an-error-to-users-with-error-boundary) @@ -1439,7 +1439,7 @@ export default class Counter extends Component { handleAgeChange = (e) => { this.setState({ - age: this.state.age + 1 + age: this.state.age + 1 }); }; @@ -1606,7 +1606,7 @@ export default class ChatRoom extends Component { this.state.serverUrl, this.props.roomId ); - this.connection.connect(); + this.connection.connect(); } destroyConnection() { @@ -1795,7 +1795,7 @@ class Panel extends Component { <h1>{this.props.title}</h1> {this.props.children} </section> - ); + ); } } diff --git a/src/content/reference/react/Fragment.md b/src/content/reference/react/Fragment.md index 19e4de2a8..577a68d60 100644 --- a/src/content/reference/react/Fragment.md +++ b/src/content/reference/react/Fragment.md @@ -4,9 +4,13 @@ title: <Fragment> (<>...</>) <Intro> +<<<<<<< HEAD `<Fragment>`, যেটা বেশিরভাগ সময় `<>...</>` সিনট্যাক্স ব্যবহার করে প্রকাশ করা হয়, আপনাকে একটা wrapper নোড ছাড়াই এলিমেন্ট গ্রুপ করার সুবিধা দেবে। +======= +`<Fragment>`, often used via `<>...</>` syntax, lets you group elements without a wrapper node. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca -<Canary> Fragments can also accept refs, which enable interacting with underlying DOM nodes without adding wrapper elements. See reference and usage below.</Canary> +<Canary>Fragments can also accept refs, which enable interacting with underlying DOM nodes without adding wrapper elements.</Canary> ```js <> @@ -29,6 +33,7 @@ title: <Fragment> (<>...</>) #### Props {/*props*/} +<<<<<<< HEAD - **অপশনাল** `key`: যেসব ফ্র্যাগমেন্ট স্পষ্টভাবে `<Fragment>` সিনট্যাক্স দিয়ে ডিক্লেয়ার করা হয় তাদের [keys](/learn/rendering-lists#keeping-list-items-in-order-with-key) থাকতে পারে। - <CanaryBadge /> **optional** `ref`: A ref object (e.g. from [`useRef`](/reference/react/useRef)) or [callback function](/reference/react-dom/components/common#ref-callback). React provides a `FragmentInstance` as the ref value that implements methods for interacting with the DOM nodes wrapped by the Fragment. @@ -57,14 +62,267 @@ When you pass a ref to a fragment, React provides a `FragmentInstance` object wi **Observer methods:** - `observeUsing(observer)`: Starts observing the Fragment's DOM children with an IntersectionObserver or ResizeObserver. - `unobserveUsing(observer)`: Stops observing the Fragment's DOM children with the specified observer. +======= +- **optional** `key`: Fragments declared with the explicit `<Fragment>` syntax may have [keys.](/learn/rendering-lists#keeping-list-items-in-order-with-key) +- <CanaryBadge /> **optional** `ref`: A ref object (e.g. from [`useRef`](/reference/react/useRef)) or [callback function](/reference/react-dom/components/common#ref-callback). React provides a `FragmentInstance` as the ref value that implements methods for interacting with the DOM nodes wrapped by the Fragment. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca #### সতর্কতা {/*caveats*/} +<<<<<<< HEAD - আপনি যদি একটা ফ্র্যাগমেন্টে `key` পাস করতে চান, আপনি `<>...</>` সিনট্যাক্স ব্যবহার করতে পারবেন না। আপনাকে স্পষ্টভাবে `'react'` থেকে `Fragment` ইমপোর্ট করতে হবে এবং `<Fragment key={yourKey}>...</Fragment>` রেন্ডার করতে হবে। - যখন আপনি `<><Child /></>` থেকে `[<Child />]` রেন্ডারিং এ চলে যান বা ফিরে আসেন, অথবা `<><Child /></>` থেকে `<Child />` রেন্ডারিং এ যান এবং ফিরে আসেন React [state রিসেট](/learn/preserving-and-resetting-state) করে না। এটা শুধুমাত্র এক স্তর গভীরে কাজ করেঃ উদাহরণস্বরূপ, `<><><Child /></></>` থেকে `<Child />` এ গেলে state রিসেট হয়। সুনির্দিষ্ট semantics দেখুন [এখানে।](https://gist.github.com/clemmy/b3ef00f9507909429d8aa0d3ee4f986b) +======= +* If you want to pass `key` to a Fragment, you can't use the `<>...</>` syntax. You have to explicitly import `Fragment` from `'react'` and render `<Fragment key={yourKey}>...</Fragment>`. -- <CanaryBadge /> If you want to pass `ref` to a Fragment, you can't use the `<>...</>` syntax. You have to explicitly import `Fragment` from `'react'` and render `<Fragment ref={yourRef}>...</Fragment>`. +* React does not [reset state](/learn/preserving-and-resetting-state) when you go from rendering `<><Child /></>` to `[<Child />]` or back, or when you go from rendering `<><Child /></>` to `<Child />` and back. This only works a single level deep: for example, going from `<><><Child /></></>` to `<Child />` resets the state. See the precise semantics [here.](https://gist.github.com/clemmy/b3ef00f9507909429d8aa0d3ee4f986b) +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca + +* <CanaryBadge /> If you want to pass `ref` to a Fragment, you can't use the `<>...</>` syntax. You have to explicitly import `Fragment` from `'react'` and render `<Fragment ref={yourRef}>...</Fragment>`. + +--- + +### <CanaryBadge /> `FragmentInstance` {/*fragmentinstance*/} + +When you pass a `ref` to a Fragment, React provides a `FragmentInstance` object. It implements methods for interacting with the first-level DOM children wrapped by the Fragment. + +* [`addEventListener`](#addeventlistener) and [`removeEventListener`](#removeeventlistener) manage event listeners across all first-level DOM children. +* [`dispatchEvent`](#dispatchevent) dispatches an event on the Fragment, which can bubble to the DOM parent. +* [`focus`](#focus), [`focusLast`](#focuslast), and [`blur`](#blur) manage focus across all nested children depth-first. +* [`observeUsing`](#observeusing) and [`unobserveUsing`](#unobserveusing) attach and detach `IntersectionObserver` or `ResizeObserver` instances. +* [`getClientRects`](#getclientrects) returns bounding rectangles of all first-level DOM children. +* [`getRootNode`](#getrootnode) returns the root node of the Fragment's parent. +* [`compareDocumentPosition`](#comparedocumentposition) compares the Fragment's position with another node. +* [`scrollIntoView`](#scrollintoview) scrolls the Fragment's children into view. + +--- + +#### `addEventListener(type, listener, options?)` {/*addeventlistener*/} + +Adds an event listener to all first-level DOM children of the Fragment. + +```js +fragmentRef.current.addEventListener('click', handleClick); +``` + +##### Parameters {/*addeventlistener-parameters*/} + +* `type`: A string representing the event type to listen for (e.g. `'click'`, `'focus'`). +* `listener`: The event handler function. +* **optional** `options`: An options object or boolean for capture, matching the [DOM `addEventListener` API.](https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener) + +##### Returns {/*addeventlistener-returns*/} + +`addEventListener` does not return anything (`undefined`). + +--- + +#### `removeEventListener(type, listener, options?)` {/*removeeventlistener*/} + +Removes an event listener from all first-level DOM children of the Fragment. + +```js +fragmentRef.current.removeEventListener('click', handleClick); +``` + +##### Parameters {/*removeeventlistener-parameters*/} + +* `type`: The event type string. +* `listener`: The event handler function to remove. +* **optional** `options`: An options object or boolean, matching the [DOM `removeEventListener` API.](https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/removeEventListener) + +##### Returns {/*removeeventlistener-returns*/} + +`removeEventListener` does not return anything (`undefined`). + +--- + +#### `dispatchEvent(event)` {/*dispatchevent*/} + +Dispatches an event on the Fragment. Added event listeners are called, and the event can bubble to the Fragment's DOM parent. + +```js +fragmentRef.current.dispatchEvent(new Event('custom', { bubbles: true })); +``` + +##### Parameters {/*dispatchevent-parameters*/} + +* `event`: An [`Event`](https://developer.mozilla.org/en-US/docs/Web/API/Event) object to dispatch. If `bubbles` is `true`, the event bubbles to the Fragment's parent DOM node. + +##### Returns {/*dispatchevent-returns*/} + +`true` if the event was not cancelled, `false` if `preventDefault()` was called. + +--- + +#### `focus(options?)` {/*focus*/} + +Focuses the first focusable DOM node in the Fragment. Unlike calling `element.focus()` on a DOM element, this method searches *all* nested children depth-first until it finds a focusable element—not just the element itself or its direct children. + +```js +fragmentRef.current.focus(); +``` + +##### Parameters {/*focus-parameters*/} + +* **optional** `options`: A [`FocusOptions`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/focus#options) object (e.g. `{ preventScroll: true }`). + +##### Returns {/*focus-returns*/} + +`focus` does not return anything (`undefined`). + +--- + +#### `focusLast(options?)` {/*focuslast*/} + +Focuses the last focusable DOM node in the Fragment. Searches nested children depth-first, then iterates in reverse. + +```js +fragmentRef.current.focusLast(); +``` + +##### Parameters {/*focuslast-parameters*/} + +* **optional** `options`: A [`FocusOptions`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/focus#options) object. + +##### Returns {/*focuslast-returns*/} + +`focusLast` does not return anything (`undefined`). + +--- + +#### `blur()` {/*blur*/} + +Removes focus from the active element if it is within the Fragment. If `document.activeElement` is not within the Fragment, `blur` does nothing. + +```js +fragmentRef.current.blur(); +``` + +##### Returns {/*blur-returns*/} + +`blur` does not return anything (`undefined`). + +--- + +#### `observeUsing(observer)` {/*observeusing*/} + +Starts observing all first-level DOM children of the Fragment with the provided observer. + +```js +const observer = new IntersectionObserver(callback, options); +fragmentRef.current.observeUsing(observer); +``` + +##### Parameters {/*observeusing-parameters*/} + +* `observer`: An [`IntersectionObserver`](https://developer.mozilla.org/en-US/docs/Web/API/IntersectionObserver) or [`ResizeObserver`](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver) instance. + +##### Returns {/*observeusing-returns*/} + +`observeUsing` does not return anything (`undefined`). + +--- + +#### `unobserveUsing(observer)` {/*unobserveusing*/} + +Stops observing the Fragment's DOM children with the specified observer. + +```js +fragmentRef.current.unobserveUsing(observer); +``` + +##### Parameters {/*unobserveusing-parameters*/} + +* `observer`: The same `IntersectionObserver` or `ResizeObserver` instance previously passed to [`observeUsing`](#observeusing). + +##### Returns {/*unobserveusing-returns*/} + +`unobserveUsing` does not return anything (`undefined`). + +--- + +#### `getClientRects()` {/*getclientrects*/} + +Returns a flat array of [`DOMRect`](https://developer.mozilla.org/en-US/docs/Web/API/DOMRect) objects representing the bounding rectangles of all first-level DOM children. + +```js +const rects = fragmentRef.current.getClientRects(); +``` + +##### Returns {/*getclientrects-returns*/} + +An `Array<DOMRect>` containing the bounding rectangles of all children. + +--- + +#### `getRootNode(options?)` {/*getrootnode*/} + +Returns the root node containing the Fragment's parent DOM node, matching the behavior of [`Node.getRootNode()`](https://developer.mozilla.org/en-US/docs/Web/API/Node/getRootNode). + +```js +const root = fragmentRef.current.getRootNode(); +``` + +##### Parameters {/*getrootnode-parameters*/} + +* **optional** `options`: An object with a `composed` boolean property, matching the [DOM `getRootNode` API.](https://developer.mozilla.org/en-US/docs/Web/API/Node/getRootNode#options) + +##### Returns {/*getrootnode-returns*/} + +A `Document`, `ShadowRoot`, or the `FragmentInstance` itself if there is no parent DOM node. + +--- + +#### `compareDocumentPosition(otherNode)` {/*comparedocumentposition*/} + +Compares the document position of the Fragment with another node, returning a bitmask matching the behavior of [`Node.compareDocumentPosition()`](https://developer.mozilla.org/en-US/docs/Web/API/Node/compareDocumentPosition). + +```js +const position = fragmentRef.current.compareDocumentPosition(otherElement); +``` + +##### Parameters {/*comparedocumentposition-parameters*/} + +* `otherNode`: The DOM node to compare against. + +##### Returns {/*comparedocumentposition-returns*/} + +A bitmask of [position flags](https://developer.mozilla.org/en-US/docs/Web/API/Node/compareDocumentPosition#return_value). Empty Fragments and Fragments with children rendered through a [portal](/reference/react-dom/createPortal) include `Node.DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC` in the result. + +--- + +#### `scrollIntoView(alignToTop?)` {/*scrollintoview*/} + +Scrolls the Fragment's children into view. When `alignToTop` is `true` or omitted, scrolls to align the first child with the top of the scrollable ancestor. When `alignToTop` is `false`, scrolls to align the last child with the bottom. + +```js +fragmentRef.current.scrollIntoView(); +``` + +##### Parameters {/*scrollintoview-parameters*/} + +* **optional** `alignToTop`: A boolean. If `true` (the default), scrolls the first child to the top of the scrollable area. If `false`, scrolls the last child to the bottom. Unlike [`Element.scrollIntoView()`](https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView), this method does not accept a `ScrollIntoViewOptions` object. + +##### Returns {/*scrollintoview-returns*/} + +`scrollIntoView` does not return anything (`undefined`). + +##### Caveats {/*scrollintoview-caveats*/} + +* `scrollIntoView` does not accept an options object. Passing one throws an error. Use the `alignToTop` boolean instead. +* When the Fragment has no children, `scrollIntoView` scrolls the nearest sibling or parent into view as a fallback. + +--- + +#### `FragmentInstance` Caveats {/*fragmentinstance-caveats*/} + +* Methods that target children (such as `addEventListener`, `observeUsing`, and `getClientRects`) operate on *first-level host (DOM) children* of the Fragment. They do not directly target children nested inside another DOM element. +* `focus` and `focusLast` search nested children depth-first for focusable elements, unlike event and observer methods which only target first-level host children. +* `observeUsing` does not work on text nodes. React logs a warning in development if the Fragment contains only text children. +* React does not apply event listeners added via `addEventListener` to hidden [`<Activity>`](/reference/react/Activity) trees. When an `Activity` boundary switches from hidden to visible, listeners are applied automatically. +* Each first-level DOM child of a Fragment with a `ref` gets a `reactFragments` property—a `Set<FragmentInstance>` containing all Fragment instances that own the element. This enables [caching a shared observer](#caching-global-intersection-observer) across multiple Fragments. --- @@ -242,47 +500,312 @@ function PostBody({ body }) { --- -### <CanaryBadge /> Using Fragment refs for DOM interaction {/*using-fragment-refs-for-dom-interaction*/} +### <CanaryBadge /> Adding event listeners without a wrapper element {/*adding-event-listeners-without-wrapper*/} -Fragment refs allow you to interact with the DOM nodes wrapped by a Fragment without adding extra wrapper elements. This is useful for event handling, visibility tracking, focus management, and replacing deprecated patterns like `ReactDOM.findDOMNode()`. +Fragment `ref`s let you add event listeners to a group of elements without adding a wrapper DOM node. Use a [ref callback](/reference/react-dom/components/common#ref-callback) to attach and clean up listeners: + +<Sandpack> ```js -import { Fragment } from 'react'; +import { Fragment, useState, useRef, useEffect } from 'react'; function ClickableFragment({ children, onClick }) { + const fragmentRef = useRef(null); + useEffect(() => { + const fragmentInstance = fragmentRef.current; + if (fragmentInstance === null) { + return; + } + fragmentInstance.addEventListener('click', onClick); + return () => { + fragmentInstance.removeEventListener( + 'click', + onClick + ); + }; + }, [onClick]) return ( - <Fragment ref={fragmentInstance => { - fragmentInstance.addEventListener('click', handleClick); - return () => fragmentInstance.removeEventListener('click', handleClick); - }}> + <Fragment ref={fragmentRef}> {children} </Fragment> ); } + +export default function App() { + const [clicks, setClicks] = useState(0); + + return ( + <> + <p>Total clicks: {clicks}</p> + <ClickableFragment onClick={() => { + setClicks(c => c + 1); + }}> + <button>Button A</button> + <button>Button B</button> + <button>Button C</button> + </ClickableFragment> + </> + ); +} ``` + +```json package.json hidden +{ + "dependencies": { + "react": "canary", + "react-dom": "canary", + "react-scripts": "latest" + } +} +``` + +</Sandpack> + +The `addEventListener` call applies the listener to every first-level DOM child of the Fragment. When children are dynamically added or removed, the `FragmentInstance` automatically adds or removes the listener. + +<DeepDive> + +#### Which children does a Fragment ref target? {/*which-children-does-a-fragment-ref-target*/} + +A `FragmentInstance` targets the **first-level host (DOM) children** of the Fragment. Consider this tree: + +```js +<Fragment ref={ref}> + <div id="A" /> + <Wrapper> + <div id="B"> + <div id="C" /> + </div> + </Wrapper> + <div id="D" /> +</Fragment> +``` + +`Wrapper` is a React component, so the `FragmentInstance` looks through it to find DOM nodes. The targeted children are `A`, `B`, and `D`. `C` is not targeted because it is nested inside the DOM element `B`. + +Methods like `addEventListener`, `observeUsing`, and `getClientRects` operate on these first-level DOM children. `focus` and `focusLast` are different—they search *all* nested children depth-first to find focusable elements. + +</DeepDive> + --- -### <CanaryBadge /> Tracking visibility with Fragment refs {/*tracking-visibility-with-fragment-refs*/} +### <CanaryBadge /> Managing focus across a group of elements {/*managing-focus-across-elements*/} -Fragment refs are useful for visibility tracking and intersection observation. This enables you to monitor when content becomes visible without requiring the child Components to expose refs: +Fragment `ref`s provide `focus`, `focusLast`, and `blur` methods that operate across all DOM nodes within the Fragment: -```js {19,21,31-34} -import { Fragment, useRef, useLayoutEffect } from 'react'; +<Sandpack> -function VisibilityObserverFragment({ threshold = 0.5, onVisibilityChange, children }) { +```js +import { Fragment, useRef } from 'react'; + +function FormFields({ children }) { + const fragmentRef = useRef(null); + + return ( + <> + <div className="buttons"> + <button onClick={() => { + fragmentRef.current.focus(); + }}> + Focus first + </button> + <button onClick={() => { + fragmentRef.current.focusLast(); + }}> + Focus last + </button> + <button onClick={() => { + fragmentRef.current.blur(); + }}> + Blur + </button> + </div> + <Fragment ref={fragmentRef}> + {children} + </Fragment> + </> + ); +} + +// Even though the inputs are deeply nested, +// focus() searches depth-first to find them. +export default function App() { + return ( + <FormFields> + <fieldset> + <legend>Shipping</legend> + <label> + Street: <input name="street" /> + </label> + <label> + City: <input name="city" /> + </label> + </fieldset> + </FormFields> + ); +} +``` + +```css +.buttons { + display: flex; + gap: 8px; + margin-bottom: 10px; +} + +label { + display: inline-block; +} +``` + +```json package.json hidden +{ + "dependencies": { + "react": "canary", + "react-dom": "canary", + "react-scripts": "latest" + } +} +``` + +</Sandpack> + +Calling `focus()` focuses the `street` input—even though it is nested inside a `<fieldset>` and `<label>`. `focus()` searches depth-first through all nested children, not just direct children of the Fragment. `focusLast()` does the same in reverse, and `blur()` removes focus if the currently focused element is within the Fragment. + +--- + +### <CanaryBadge /> Scrolling a group of elements into view {/*scrolling-group-into-view*/} + +Use `scrollIntoView` to scroll a Fragment's children into view without a wrapper element. Pass `true` (or omit the argument) to scroll the first child to the top. Pass `false` to scroll the last child to the bottom: + +<Sandpack> + +```js +import { Fragment, useRef } from 'react'; + +function ScrollableSection({ children }) { + const fragmentRef = useRef(null); + + return ( + <> + <div className="buttons"> + <button onClick={() => { + fragmentRef.current.scrollIntoView(); + }}> + Scroll to top + </button> + <button onClick={() => { + fragmentRef.current.scrollIntoView(false); + }}> + Scroll to bottom + </button> + </div> + <div className="container"> + <Fragment ref={fragmentRef}> + {children} + </Fragment> + </div> + </> + ); +} + +const items = []; +for (let i = 1; i <= 25; i++) { + items.push('Item ' + i); +} + +export default function App() { + return ( + <ScrollableSection> + <h3>Section Start</h3> + {items.map((item) => ( + <p key={item}>{item}</p> + ))} + <h3>Section End</h3> + </ScrollableSection> + ); +} +``` + +```css +.buttons { + display: flex; + gap: 8px; + margin-bottom: 10px; +} + +.container { + height: 200px; + overflow-y: auto; + border: 2px solid #c4c4c4; + border-radius: 4px; + padding: 10px; +} + +h3 { + margin: 4px 0; + /* Padding to handle offset of global sticky nav when scrolling for example */ + padding-top: 4em; + color: #1a73e8; +} + +p { + margin: 4px 0; +} +``` + +```json package.json hidden +{ + "dependencies": { + "react": "canary", + "react-dom": "canary", + "react-scripts": "latest" + } +} +``` + +</Sandpack> + +--- + +### <CanaryBadge /> Observing visibility without a wrapper element {/*observing-visibility-without-wrapper*/} + +Use `observeUsing` to attach an `IntersectionObserver` to all first-level DOM children of a Fragment. This lets you track visibility without requiring child components to expose `ref`s or adding a wrapper element: + +<Sandpack> + +```js +import { + Fragment, + useRef, + useLayoutEffect, + useState, +} from 'react'; +import Card from './Card'; + +function VisibleGroup({ onVisibilityChange, children }) { const fragmentRef = useRef(null); useLayoutEffect(() => { + const visibleElements = new Set(); const observer = new IntersectionObserver( (entries) => { - onVisibilityChange(entries.some(entry => entry.isIntersecting)) - }, - { threshold } + entries.forEach(e => { + if (e.isIntersecting) { + visibleElements.add(e.target); + } else { + visibleElements.delete(e.target); + } + }); + onVisibilityChange(visibleElements.size > 0); + } ); - - fragmentRef.current.observeUsing(observer); - return () => fragmentRef.current.unobserveUsing(observer); - }, [threshold, onVisibilityChange]); + const fragmentInstance = fragmentRef.current; + fragmentInstance.observeUsing(observer); + return () => { + fragmentInstance.unobserveUsing(observer); + }; + }, [onVisibilityChange]); return ( <Fragment ref={fragmentRef}> @@ -291,38 +814,258 @@ function VisibilityObserverFragment({ threshold = 0.5, onVisibilityChange, child ); } -function MyComponent() { - const handleVisibilityChange = (isVisible) => { - console.log('Component is', isVisible ? 'visible' : 'hidden'); - }; +export default function App() { + const [isVisible, setIsVisible] = useState(true); return ( - <VisibilityObserverFragment onVisibilityChange={handleVisibilityChange}> - <SomeThirdPartyComponent /> - <AnotherComponent /> - </VisibilityObserverFragment> + <div className={isVisible ? 'page visible' : 'page'}> + <div className="filler">Scroll down</div> + <VisibleGroup onVisibilityChange={setIsVisible}> + <Card title="First section" /> + <Card title="Second section" /> + </VisibleGroup> + <div className="filler">Scroll up</div> + </div> ); } ``` -This pattern is an alternative to Effect-based visibility logging, which is an anti-pattern in most cases. Relying on Effects alone does not guarantee that the rendered Component is observable by the user. +```css +.page { + transition: background 0.3s; +} + +.page.visible { + background: #d4edda; +} + +.filler { + height: 500px; + display: flex; + align-items: center; + justify-content: center; + color: #aaa; + font-size: 14px; +} + +.card { + padding: 16px; + background: white; + border: 1px solid #ddd; + border-radius: 8px; + margin: 8px 16px; + box-shadow: 0 1px 3px rgba(0,0,0,0.08); + font-weight: 600; + font-size: 14px; +} +``` + +```js src/Card.js hidden +export default function Card({ title }) { + return <div className="card">{title}</div>; +} +``` + +```json package.json hidden +{ + "dependencies": { + "react": "canary", + "react-dom": "canary", + "react-scripts": "latest" + } +} +``` + +</Sandpack> --- -### <CanaryBadge /> Focus management with Fragment refs {/*focus-management-with-fragment-refs*/} +### <CanaryBadge /> Caching a global IntersectionObserver {/*caching-global-intersection-observer*/} -Fragment refs provide focus management methods that work across all DOM nodes within the Fragment: +A common performance optimization for sites with many observers is to share a single IntersectionObserver per config and route its entries to the correct callbacks based on which element intersected. Fragment `ref`s support this same pattern through the `reactFragments` property. -```js -import { Fragment, useRef } from 'react'; +Each first-level DOM child of a Fragment with a `ref` has a `reactFragments` property: a `Set` of `FragmentInstance` objects that contain that element. When the shared observer fires, you can use this property to look up which `FragmentInstance` owns the intersecting element and run the right callbacks. + +<Sandpack> + +```js src/App.js active +import { useState, useCallback } from 'react'; +import ObservedGroup from './ObservedGroup'; +import Card from './Card'; + +export default function App() { + const [bgColor, setBgColor] = useState(null); + + const onGreen = useCallback((entry) => { + if (entry.isIntersecting) { + setBgColor('#d4edda'); + } + }, []); + + const onBlue = useCallback((entry) => { + if (entry.isIntersecting) { + setBgColor('#cce5ff'); + } + }, []); + + return ( + <div className="page" style={{ + background: bgColor || 'white', + }}> + <div className="filler">Scroll down</div> + <ObservedGroup onIntersection={onGreen}> + <Card title="Green section" className="green" /> + </ObservedGroup> + <div className="filler" /> + <ObservedGroup onIntersection={onBlue}> + <Card title="Blue section" className="blue" /> + </ObservedGroup> + <div className="filler">Scroll up</div> + </div> + ); +} +``` + +```js src/ObservedGroup.js +import { + Fragment, + useRef, + useLayoutEffect, +} from 'react'; + +const callbackMap = new WeakMap(); +const observerCache = new Map(); + +function getOptionsKey(options) { + const root = options?.root ?? null; + const rootMargin = options?.rootMargin ?? '0px'; + const threshold = options?.threshold ?? 0; + return `${rootMargin}|${threshold}`; +} + +function getSharedObserver( + fragmentInstance, + onIntersection, + options, +) { + // Register this callback for the + // fragment instance. + const existing = + callbackMap.get(fragmentInstance); + callbackMap.set( + fragmentInstance, + existing + ? [...existing, onIntersection] + : [onIntersection], + ); + + const key = getOptionsKey(options); + if (observerCache.has(key)) { + return observerCache.get(key); + } + + const observer = new IntersectionObserver( + (entries) => { + for (const entry of entries) { + // Look up which FragmentInstances own + // this element. + const fragmentInstances = + entry.target.reactFragments; + if (fragmentInstances) { + for (const inst of fragmentInstances) { + const callbacks = + callbackMap.get(inst) || []; + callbacks.forEach(cb => cb(entry)); + } + } + } + }, + options, + ); + + observerCache.set(key, observer); + return observer; +} + +export default function ObservedGroup({ + onIntersection, + options, + children, +}) { + const fragmentRef = useRef(null); + + useLayoutEffect(() => { + const fragmentInstance = fragmentRef.current; + const observer = getSharedObserver( + fragmentInstance, + onIntersection, + options, + ); + fragmentInstance.observeUsing(observer); + return () => { + fragmentInstance.unobserveUsing(observer); + callbackMap.delete(fragmentInstance); + }; + }, [onIntersection, options]); -function FocusFragment({ children }) { return ( - <Fragment ref={(fragmentInstance) => fragmentInstance?.focus()}> + <Fragment ref={fragmentRef}> {children} </Fragment> ); } ``` -The `focus()` method focuses the first focusable element within the Fragment, while `focusLast()` focuses the last focusable element. +```css +.page { + transition: background 0.3s; +} + +.filler { + height: 500px; + display: flex; + align-items: center; + justify-content: center; + color: #aaa; + font-size: 14px; +} + +.card { + padding: 16px; + background: white; + border: 1px solid #ddd; + border-radius: 8px; + margin: 0 16px; + box-shadow: 0 1px 3px rgba(0,0,0,0.08); + font-weight: 600; + font-size: 14px; +} + +.card.green { + border-left: 3px solid #28a745; +} + +.card.blue { + border-left: 3px solid #007bff; +} +``` + +```js src/Card.js hidden +export default function Card({ title, className }) { + return <div className={'card' + (className ? ' ' + className : '')}>{title}</div>; +} +``` + +```json package.json hidden +{ + "dependencies": { + "react": "canary", + "react-dom": "canary", + "react-scripts": "latest" + } +} +``` + +</Sandpack> + +Multiple `ObservedGroup` components with the same options reuse a single `IntersectionObserver`. When either section scrolls into view, the shared observer fires and uses `reactFragments` to route the entry to the correct callback. diff --git a/src/content/reference/react/Suspense.md b/src/content/reference/react/Suspense.md index ac8d378d5..9f83bfb78 100644 --- a/src/content/reference/react/Suspense.md +++ b/src/content/reference/react/Suspense.md @@ -23,12 +23,20 @@ title: <Suspense> ### `<Suspense>` {/*suspense*/} +<<<<<<< HEAD #### প্রপ্স {/*props*/} * `children`: আপনি যেই প্রকৃত UI রেন্ডার করতে চাইছেন। `children` যদি রেন্ডারিং এর সময় থেমে যায় তাহলে Suspense boundary `fallback` রেন্ডার করবে। * `fallback`: এটি হচ্ছে, প্রকৃত UI পুরোপুরি লোড না হলে তার স্থানে রেন্ডার হওয়া একটি বিকল্প UI। যেকোনো বৈধ React নোডই গৃহীত হয়, যদিও কার্যত, একটি fallback হলো একটি হালকা placeholder view, যেমন একটি লোডিং স্পিনার বা স্কেলেটন। Suspense স্বয়ংক্রিয় ভাবে `fallback` এ পরিবর্তিত হয়ে যাবে যখন `children` থেমে যাবে এবং আবার `children` এ ফিরে আসবে যখন ডেটা তৈরি হয়ে যাবে। রেন্ডারিং এর সময় যদি `fallback` থেমে যায়, এটি তার নিকটতম প্যারেন্ট Suspense boundary সক্রিয় করবে। +======= +#### Props {/*props*/} +* `children`: The actual UI you intend to render. If `children` suspends while rendering, the Suspense boundary will switch to rendering `fallback`. +* `fallback`: An alternate UI to render in place of the actual UI if it has not finished loading. Any valid React node is accepted, though in practice, a fallback is a lightweight placeholder view, such as a loading spinner or skeleton. Suspense will automatically switch to `fallback` when `children` suspends, and back to `children` when the data is ready. If `fallback` suspends while rendering, it will activate the closest parent Suspense boundary. +* <ExperimentalBadge /> **optional** `defer`: A boolean. When `true`, React may show the `fallback` first and render or stream `children` later, even when nothing in them suspends. Use it for content that is expensive to render. Defaults to `false`. +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca #### সতর্কতা {/*caveats*/} +<<<<<<< HEAD - React প্রথমবার মাউন্ট হওয়ার আগে থেমে যাওয়া রেন্ডারগুলোর জন্য কোনও state সংরক্ষণ করে না। কম্পোনেন্ট লোড হলে, React থেমে যাওয়া ট্রি পুনরায় শূন্য থেকে রেন্ডার করার চেষ্টা করবে। - Suspense যদি ট্রির জন্য কন্টেন্ট দেখাতে থাকে, কিন্তু পরে আবার থেমে যায়, তবে `fallback` আবার দেখানো হবে যদিনা এর আপডেটের কারণ [`startTransition`](/reference/react/startTransition) বা [`useDeferredValue`](/reference/react/useDeferredValue) দ্বারা সৃষ্টি হয়ে থাকে। - যদি React পুনরায় থেমে যাওয়ার কারণে আগে দেখানো কন্টেন্ট লুকানোর প্রয়োজন হয়, তবে এটি কন্টেন্ট ট্রির [layout Effects](/reference/react/useLayoutEffect) কে পরিষ্কার করবে। কন্টেন্ট যখন আবার দেখানোর জন্য প্রস্তুত হয়ে যায়, রিয়েক্ট আবার layout Effects চালাবে। এটি নিশ্চিত করে যে, DOM layout পরিমাপ করা ইফেক্টগুলো কন্টেন্ট লুকায়িত অবস্থায় এটা করার চেষ্টা করে না। @@ -37,6 +45,42 @@ title: <Suspense> --- ## ব্যবহারবিধি {/*usage*/} +======= +- Suspense does not detect when data is fetched inside an Effect or event handler. It only activates in the [cases listed below.](#what-activates-a-suspense-boundary) +- React does not preserve any state for renders that got suspended before they were able to mount for the first time. When the component has loaded, React will retry rendering the suspended tree from scratch. +- If Suspense was displaying content for the tree, but then it suspended again, the `fallback` will be shown again unless the update causing it was caused by [`startTransition`](/reference/react/startTransition) or [`useDeferredValue`](/reference/react/useDeferredValue). +- React reveals suspended content at most once every 300ms, measured from the last reveal. Boundaries that become ready within that window are [revealed together](/blog/2025/10/01/react-19-2#batching-suspense-boundaries-for-ssr) rather than one at a time. +- If React needs to hide the already visible content because it suspended again, it will clean up [layout Effects](/reference/react/useLayoutEffect) in the content tree. When the content is ready to be shown again, React will fire the layout Effects again. This ensures that Effects measuring the DOM layout don't try to do this while the content is hidden. +- React includes under-the-hood optimizations like *Streaming Server Rendering* and *Selective Hydration* that are integrated with Suspense. Read [an architectural overview](https://github.com/reactwg/react-18/discussions/37) and watch [a technical talk](https://www.youtube.com/watch?v=pj5N-Khihgc) to learn more. + +--- + +### What activates a Suspense boundary {/*what-activates-a-suspense-boundary*/} + +A Suspense boundary waits for its content to be ready before revealing it. Any of the following keeps a boundary from revealing its content: + +- Lazy-loading component code with [`lazy`](/reference/react/lazy). +- Reading a Promise with [`use`](/reference/react/use), including data streamed from [Server Components](/reference/rsc/server-components) or loaded through a [Suspense-enabled framework](#suspense-enabled-frameworks). +- Loading a stylesheet rendered with [`<link rel="stylesheet">` and a `precedence` prop.](/reference/react-dom/components/link#special-rendering-behavior) React blocks the boundary until the stylesheet loads, up to a timeout. [See an example below.](#waiting-for-a-stylesheet-to-load) +- Waiting for a large boundary's HTML to arrive during streaming server rendering. Sending HTML takes time, so a boundary with enough content activates even when nothing in it suspends. React reveals the content as the HTML arrives. +- <CanaryBadge /> Loading fonts. Suspense doesn't wait for fonts by default, but a [`<ViewTransition>`](/reference/react/ViewTransition) update waits for new fonts to load, up to a timeout, so text doesn't flash with a fallback font. [See an example below.](#waiting-for-a-font-to-load) +- <CanaryBadge /> Loading images. Suspense doesn't wait for images by default, but during a [`<ViewTransition>`](/reference/react/ViewTransition) update, React blocks the boundary until the image loads, up to a timeout. Adding an `onLoad` handler opts a specific image out. [See an example below.](#waiting-for-an-image-to-load) +- <ExperimentalBadge /> Performing CPU-bound render work inside a [`<Suspense defer>`](#props) boundary. + +<Note> + +#### Suspense-enabled frameworks {/*suspense-enabled-frameworks*/} + +A *Suspense-enabled framework* gives you a way to read data in your component in a way that activates the closest Suspense boundary. The exact way you load your data depends on your framework, and you'll find the details in its documentation. Under the hood, a Suspense-enabled framework maintains a cache of Promises and calls [`use`](/reference/react/use) to suspend on a Promise. + +Without a framework, you can read a Promise with `use` directly, as long as the Promise is [cached so the same instance is reused across renders.](/reference/react/use#caching-promises-for-client-components) + +</Note> + +--- + +## Usage {/*usage*/} +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca ### কন্টেন্ট লোড হওয়ার সময় একটি fallback দেখানো {/*displaying-a-fallback-while-content-is-loading*/} @@ -203,8 +247,9 @@ async function getAlbums() { </Sandpack> -<Note> +By contrast, code that fetches data outside of `use`, such as inside an Effect, does not activate the boundary: +<<<<<<< HEAD **শুধুমাত্র Suspense-enabled ডেটা উৎসগুলো Suspense কম্পোনেন্টকে সক্রিয় করতে পারবে।** এদের মধ্যে রয়েছেঃ - Suspense-enabled ফ্রেমওয়ার্কের সাহায্যে ডেটা নিয়ে আসা যেমন, [Relay](https://relay.dev/docs/guided-tour/rendering/loading-states/) এবং [Next.js](https://nextjs.org/docs/app/building-your-application/routing/loading-ui-and-streaming#streaming-with-suspense) @@ -214,8 +259,256 @@ async function getAlbums() { উপরের `Albums` কম্পোনেন্টে আপনি ঠিক কিভাবে ডেটা লোড করবেন তা আপনার ফ্রেমওয়ার্ক এর উপর নির্ভর করে। আপনি যদি Suspense-enabled ফ্রেমওয়ার্ক ব্যাবহার করেন তাহলে আপনি এর ডেটা নিয়ে আসার ডকুমেন্টেশনে বিস্তারিত তথ্য পাবেন। মতানুযায়ী নির্ধারিত ফ্রেমওয়ার্ক ছাড়া Suspense-enabled ডেটা নিয়ে আসা এখনো সমর্থিত নয়। Suspense-enabled ডেটা উৎস সংযোজনের জন্য প্রয়োজনীয় বিবরণগুলো অস্থিতিশীল এবং নথিভুক্ত নয়। Suspense দিয়ে ডেটা উৎসগুলোর সংযোজনের জন্য একটি অফিসিয়াল API পরবর্তী React সংস্করণে প্রকাশিত হবে। +======= +<Sandpack> -</Note> +```js src/App.js hidden +import { useState } from 'react'; +import ArtistPage from './ArtistPage.js'; + +export default function App() { + const [show, setShow] = useState(false); + if (show) { + return ( + <ArtistPage + artist={{ + id: 'the-beatles', + name: 'The Beatles', + }} + /> + ); + } else { + return ( + <button onClick={() => setShow(true)}> + Open The Beatles artist page + </button> + ); + } +} +``` + +```js src/ArtistPage.js active +import { Suspense } from 'react'; +import EffectAlbums from './EffectAlbums.js'; + +export default function ArtistPage({ artist }) { + return ( + <> + <h1>{artist.name}</h1> + <Suspense fallback={<Loading />}> + <EffectAlbums artistId={artist.id} /> + </Suspense> + </> + ); +} +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca + +function Loading() { + return <h2>🌀 Loading...</h2>; +} +``` + +```js src/EffectAlbums.js +import { useState, useEffect } from 'react'; +import { fetchData } from './data.js'; + +export default function EffectAlbums({ artistId }) { + const [albums, setAlbums] = useState([]); + + useEffect(() => { + let active = true; + fetchData(`/${artistId}/albums`).then(result => { + if (active) { + setAlbums(result); + } + }); + return () => { + active = false; + }; + }, [artistId]); + + // Suspense can't see this fetch, so its fallback never + // shows. The list stays empty until the data arrives. + return ( + <ul> + {albums.map(album => ( + <li key={album.id}> + {album.title} ({album.year}) + </li> + ))} + </ul> + ); +} +``` + +```js src/data.js hidden +// Note: the way you would do data fetching depends on +// the framework that you use together with Suspense. +// Normally, the caching logic would be inside a framework. + +let cache = new Map(); + +export function fetchData(url) { + if (!cache.has(url)) { + cache.set(url, getData(url)); + } + return cache.get(url); +} + +async function getData(url) { + if (url === '/the-beatles/albums') { + return await getAlbums(); + } else { + throw Error('Not implemented'); + } +} + +async function getAlbums() { + // Add a fake delay to make waiting noticeable. + await new Promise(resolve => { + setTimeout(resolve, 3000); + }); + + return [{ + id: 13, + title: 'Let It Be', + year: 1970 + }, { + id: 12, + title: 'Abbey Road', + year: 1969 + }, { + id: 11, + title: 'Yellow Submarine', + year: 1969 + }, { + id: 10, + title: 'The Beatles', + year: 1968 + }, { + id: 9, + title: 'Magical Mystery Tour', + year: 1967 + }, { + id: 8, + title: 'Sgt. Pepper\'s Lonely Hearts Club Band', + year: 1967 + }, { + id: 7, + title: 'Revolver', + year: 1966 + }, { + id: 6, + title: 'Rubber Soul', + year: 1965 + }, { + id: 5, + title: 'Help!', + year: 1965 + }, { + id: 4, + title: 'Beatles For Sale', + year: 1964 + }, { + id: 3, + title: 'A Hard Day\'s Night', + year: 1964 + }, { + id: 2, + title: 'With The Beatles', + year: 1963 + }, { + id: 1, + title: 'Please Please Me', + year: 1963 + }]; +} +``` + +</Sandpack> + +During streaming server rendering, a boundary also activates while its HTML is still streaming in. With any streaming server rendering API, React sends [the shell](/reference/react-dom/server/renderToPipeableStream#specifying-what-goes-into-the-shell) with the `fallback` first, then streams in each boundary's HTML and swaps out its `fallback` as that content arrives. Press "Render the page" to watch the page stream in: + +<Sandpack> + +```js src/App.js hidden +``` + +```html public/index.html +<!DOCTYPE html> +<html lang="en"> +<head> + <meta charset="UTF-8" /> + <title>Streaming SSR + + + +

+ + + +``` + +```js src/index.js +import { flushReadableStreamToFrame } from './demo-helpers.js'; +import { Suspense, use } from 'react'; +import { renderToReadableStream } from 'react-dom/server'; + +let posts = null; + +function Posts() { + const text = use(posts.promise); + return

{text}

; +} + +function ProfilePage() { + return ( + + +

Alice

+

Photographer and traveler.

+ ⌛ Loading posts...

}> + + + + + ); +} + +async function main(frame) { + posts = Promise.withResolvers(); + const stream = await renderToReadableStream(); + + // The posts resolve after the shell has streamed, so React + // streams their HTML in and swaps out the fallback. + setTimeout(() => { + posts.resolve( + 'Just got back from two weeks along the coast. The drive ' + + 'was longer than expected, but every stop was worth it. ' + + 'A full write-up and more photos are coming soon.' + ); + }, 1500); + + await flushReadableStreamToFrame(stream, frame); +} + +document.getElementById('render').addEventListener('click', () => { + main(document.getElementById('container')); +}); +``` + +```js src/demo-helpers.js hidden +export async function flushReadableStreamToFrame(readable, frame) { + const doc = frame.contentWindow.document; + const decoder = new TextDecoder(); + for await (const chunk of readable) { + doc.write(decoder.decode(chunk, { stream: true })); + } + doc.close(); +} +``` + + --- @@ -360,9 +653,9 @@ async function getBio() { setTimeout(resolve, 1500); }); - return `The Beatles were an English rock band, - formed in Liverpool in 1960, that comprised - John Lennon, Paul McCartney, George Harrison + return `The Beatles were an English rock band, + formed in Liverpool in 1960, that comprised + John Lennon, Paul McCartney, George Harrison and Ringo Starr.`; } @@ -622,9 +915,9 @@ async function getBio() { setTimeout(resolve, 500); }); - return `The Beatles were an English rock band, - formed in Liverpool in 1960, that comprised - John Lennon, Paul McCartney, George Harrison + return `The Beatles were an English rock band, + formed in Liverpool in 1960, that comprised + John Lennon, Paul McCartney, George Harrison and Ringo Starr.`; } @@ -875,7 +1168,11 @@ input { margin: 10px; } +<<<<<<< HEAD একটি প্রচলিত বিকল্প UI প্যাটার্ন হলো তালিকা আপডেটকে *বিলম্বিত করা(defer)* এবং নতুন ফলাফল তৈরি হওয়া পর্যন্ত আগের ফলাফলগুলো দেখানো। [`useDeferredValue`](/reference/react/useDeferredValue) হুকটি আপনাকে query করার একটি deferred ভার্সন পাঠানোর সুবিধা দেয়ঃ +======= +A common alternative UI pattern is to *defer* updating the list and to keep showing the previous results until the new results are ready. The [`useDeferredValue`](/reference/react/useDeferredValue) Hook lets you pass a deferred version of the query down: +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca ```js {3,11} export default function App() { @@ -901,7 +1198,7 @@ export default function App() { ```js {2}
@@ -1249,9 +1546,9 @@ async function getBio() { setTimeout(resolve, 500); }); - return `The Beatles were an English rock band, - formed in Liverpool in 1960, that comprised - John Lennon, Paul McCartney, George Harrison + return `The Beatles were an English rock band, + formed in Liverpool in 1960, that comprised + John Lennon, Paul McCartney, George Harrison and Ringo Starr.`; } @@ -1373,7 +1670,7 @@ function Router() { function navigate(url) { startTransition(() => { - setPage(url); + setPage(url); }); } // ... @@ -1561,9 +1858,9 @@ async function getBio() { setTimeout(resolve, 500); }); - return `The Beatles were an English rock band, - formed in Liverpool in 1960, that comprised - John Lennon, Paul McCartney, George Harrison + return `The Beatles were an English rock band, + formed in Liverpool in 1960, that comprised + John Lennon, Paul McCartney, George Harrison and Ringo Starr.`; } @@ -1872,9 +2169,9 @@ async function getBio() { setTimeout(resolve, 500); }); - return `The Beatles were an English rock band, - formed in Liverpool in 1960, that comprised - John Lennon, Paul McCartney, George Harrison + return `The Beatles were an English rock band, + formed in Liverpool in 1960, that comprised + John Lennon, Paul McCartney, George Harrison and Ringo Starr.`; } @@ -1990,15 +2287,108 @@ main { ### নেভিগেশনে Suspense boundary গুলো রিসেট করা {/*resetting-suspense-boundaries-on-navigation*/} +<<<<<<< HEAD একটি ট্রান্সিশনের সময় React ইতিমধ্যে প্রকাশিত কন্টেন্ট লুকানো থেকে বিরত থাকবে। তবে, আপনি যদি ভিন্ন কোনো প্যরামিটার বিশিষ্ট রাউটে নেভিগেট করেন, আপনি হয়ত React কে বলতে চান যে এটি *ভিন্ন* কন্টেন্ট। আপনি এটি একটি `key` দিয়ে বুঝাতে পারেনঃ +======= +During a Transition, React avoids hiding already revealed content. However, when you navigate to *different* content, such as another user's profile, you'll want the boundary to show the fallback instead of the previous content. You can express this with a `key`: +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca ```js ``` +<<<<<<< HEAD ধরুন, আপনি একজন ব্যবহারকারীর প্রোফাইল পেজের মধ্যেই নেভিগেট করছেন এবং কিছু একটা থেমে গেল। যদি সেই আপডেটটি একটি ট্রান্সিশনের মধ্যে থাকে, তবে এটি ইতিমধ্যেই প্রকাশিত কন্টেন্টের জন্য fallback কে ট্রিগার করবে না। এরকমটাই প্রত্যাশিত। যাইহোক, এখন আবার মনে করুন আপনি দুটি ভিন্ন ব্যবহারকারীর প্রোফাইলের মধ্যে নেভিগেট করছেন। এই ক্ষেত্রে fallback টি দেখানো যুক্তিসই। উদাহরণস্বরূপ, একজন ব্যবহারকারীর টাইমলাই আরেকজন ব্যবহারকারীর টাইমলাইন থেকে *আলাদা কন্টেন্ট*। একটি `key` নির্দিষ্ট করে দেয়ার মাধ্যমে আপনি নিশ্চিত করেন যে, React ভিন্ন ভিন্ন ব্যবহারকারীর প্রোফাইলকে ভিন্ন ভিন্ন কম্পোনেন্ট হিসাবে বিবেচনা করে এবং নেভিগেশনের সময় Suspense boundary গুলো রিসেট করে। Suspense-integrated রাউটারগুলো এটি স্বয়ংক্রিয়ভাবেই করবে। +======= +With a different `key`, React treats the profiles as different content and resets the Suspense boundary during navigation. The `key` can go on the boundary itself or on a component above it. Suspense-integrated routers should do this automatically. + +In the example below, opening the profile page loads the first profile. Pressing "Bob" navigates to a different profile, and the `key` resets the boundary, so the fallback shows instead of the previous user's bio. Try removing the `key`: the previous bio stays visible while the next one loads: + + + +```js src/App.js hidden +import { useState } from 'react'; +import ProfilePage from './ProfilePage.js'; + +export default function App() { + const [show, setShow] = useState(false); + if (show) { + return ; + } + return ( + + ); +} +``` + +```js src/ProfilePage.js active +import { Suspense, useState, startTransition } from 'react'; +import Bio from './Bio.js'; +import { fetchBio } from './data.js'; + +export default function ProfilePage() { + const [user, setUser] = useState(() => ({ + id: 'alice', + bioPromise: fetchBio('alice'), + })); + function navigate(id) { + startTransition(() => { + setUser({ id, bioPromise: fetchBio(id) }); + }); + } + return ( + <> + + + ⌛ Loading profile...

}> + + + + ); +} +``` + +```js src/Bio.js +import { use } from 'react'; + +export default function Bio({ bioPromise }) { + const bio = use(bioPromise); + return

{bio}

; +} +``` + +```js src/data.js hidden +// Note: the way you would do data fetching depends on +// the framework that you use together with Suspense. + +export async function fetchBio(userId) { + // Add a fake delay to make waiting noticeable. + await new Promise(resolve => { + setTimeout(resolve, 1500); + }); + + return userId === 'alice' + ? 'Alice is a photographer and traveler.' + : 'Bob collects vintage synthesizers.'; +} +``` + +```css +button { + margin-right: 8px; +} +``` + + +>>>>>>> 6be2b020a0cabf2fd6dbff5c42c399b8ac323bca --- @@ -2027,7 +2417,876 @@ function Chat() { --- +<<<<<<< HEAD ## সমস্যার সমাধান করা {/*troubleshooting*/} +======= +### Waiting for a stylesheet to load {/*waiting-for-a-stylesheet-to-load*/} + +A stylesheet rendered with [`` and a `precedence` prop](/reference/react-dom/components/link#special-rendering-behavior) blocks the Suspense boundary until the stylesheet loads, up to a timeout, so the content doesn't appear unstyled. + +In the example below, the `Card` component renders a stylesheet with `precedence`. Press "Show card": React shows the fallback until the stylesheet has loaded, and then reveals the card with its styles applied. + +For comparison, the second button performs the same update without React, in a separate document. Nothing waits for the stylesheet, so the card's text appears in a fallback font first and then switches: + + + +```js +import { Suspense, useState, startTransition } from 'react'; +import { freshStylesheetUrl } from './styles.js'; +import VanillaCard from './VanillaCard.js'; + +function Card({ href }) { + return ( + <> + +
This card uses a font from the stylesheet.
+ + ); +} + +export default function App() { + const [href, setHref] = useState(null); + return ( + <> + + {href && ( + ⌛ Loading styles...

}> + + + )} +
+ + + ); +} +``` + +```js src/VanillaCard.js +import { useRef } from 'react'; +import { freshStylesheetUrl } from './styles.js'; + +export default function VanillaCard() { + const ref = useRef(null); + function show() { + const doc = ref.current.contentWindow.document; + doc.open(); + doc.write(` + +
This card uses a font from the stylesheet.
+ + `); + doc.close(); + } + return ( + <> + +