Sync with react.dev @ e07ac94b

scripts/deadLinkChecker.js

@@ -10,6 +10,7 @@ const PUBLIC_DIR = path.join(__dirname, '../public');
 const fileCache = new Map();
 const anchorMap = new Map(); // Map<filepath, Set<anchorId>>
 const contributorMap = new Map(); // Map<anchorId, URL>
+const redirectMap = new Map(); // Map<source, destination>
 let errorCodes = new Set();
 
 async function readFileWithCache(filePath) {
@@ -162,6 +163,22 @@ async function validateLink(link) {
     return {valid: true};
   }
 
+  // Check for redirects
+  if (redirectMap.has(urlWithoutAnchor)) {
+    const redirectDestination = redirectMap.get(urlWithoutAnchor);
+    if (
+      redirectDestination.startsWith('http://') ||
+      redirectDestination.startsWith('https://')
+    ) {
+      return {valid: true};
+    }
+    const redirectedLink = {
+      ...link,
+      url: redirectDestination + (anchorMatch ? anchorMatch[0] : ''),
+    };
+    return validateLink(redirectedLink);
+  }
+
   // Check if it's an error code link
   const errorCodeMatch = urlWithoutAnchor.match(/^\/errors\/(\d+)$/);
   if (errorCodeMatch) {
@@ -295,17 +312,42 @@ async function fetchErrorCodes() {
     }
     const codes = await response.json();
     errorCodes = new Set(Object.keys(codes));
-    console.log(chalk.gray(`Fetched ${errorCodes.size} React error codes\n`));
+    console.log(chalk.gray(`Fetched ${errorCodes.size} React error codes`));
   } catch (error) {
     throw new Error(`Failed to fetch error codes: ${error.message}`);
   }
 }
 
+async function buildRedirectsMap() {
+  try {
+    const vercelConfigPath = path.join(__dirname, '../vercel.json');
+    const vercelConfig = JSON.parse(
+      await fs.promises.readFile(vercelConfigPath, 'utf8')
+    );
+
+    if (vercelConfig.redirects) {
+      for (const redirect of vercelConfig.redirects) {
+        redirectMap.set(redirect.source, redirect.destination);
+      }
+      console.log(
+        chalk.gray(`Loaded ${redirectMap.size} redirects from vercel.json`)
+      );
+    }
+  } catch (error) {
+    console.log(
+      chalk.yellow(
+        `Warning: Could not load redirects from vercel.json: ${error.message}\n`
+      )
+    );
+  }
+}
+
 async function main() {
   const files = getMarkdownFiles();
   console.log(chalk.gray(`Checking ${files.length} markdown files...`));
 
   await fetchErrorCodes();
+  await buildRedirectsMap();
   await buildContributorMap();
   await buildAnchorMap(files);
 
@@ -315,6 +357,7 @@ async function main() {
   const totalLinks = results.reduce((sum, r) => sum + r.totalLinks, 0);
 
   if (deadLinks.length > 0) {
+    console.log('\n');
     for (const link of deadLinks) {
       console.log(chalk.yellow(`${link.file}:${link.line}:${link.column}`));
       console.log(chalk.reset(`  Link text: ${link.text}`));

src/content/blog/2023/03/16/introducing-react-dev.md

@@ -42,7 +42,7 @@ When we released React Hooks in 2018, the Hooks docs assumed the reader is famil
 **The new docs teach React with Hooks from the beginning.** The docs are divided in two main sections:
 
 * **[Learn React](/learn)** is a self-paced course that teaches React from scratch.
-* **[API Reference](/reference/react)** provides the details and usage examples for every React API.
+* **[API Reference](/reference)** provides the details and usage examples for every React API.
 
 Let's have a closer look at what you can find in each section.
 
@@ -607,7 +607,7 @@ button { display: block; margin-top: 10px; }
 
 </Recipes>
 
-Some API pages also include [Troubleshooting](/reference/react/useEffect#troubleshooting) (for common problems) and [Alternatives](https://18.react.dev/reference/react-dom/findDOMNode#alternatives) (for deprecated APIs).
+Some API pages also include [Troubleshooting](/reference/react/useEffect#troubleshooting) (for common problems) and [Alternatives](/reference/react-dom/findDOMNode#alternatives) (for deprecated APIs).
 
 We hope that this approach will make the API reference useful not only as a way to look up an argument, but as a way to see all the different things you can do with any given API—and how it connects to the other ones.
 

src/content/blog/2023/03/22/react-labs-what-we-have-been-working-on-march-2023.md

@@ -31,7 +31,7 @@ The biggest change is that we introduced [`async` / `await`](https://github.com/
 
 Now that we have data fetching pretty well sorted, we're exploring the other direction: sending data from the client to the server, so that you can execute database mutations and implement forms. We're doing this by letting you pass Server Action functions across the server/client boundary, which the client can then call, providing seamless RPC. Server Actions also give you progressively enhanced forms before JavaScript loads.
 
-React Server Components has shipped in [Next.js App Router](/learn/creating-a-react-app#nextjs-app-router). This showcases a deep integration of a router that really buys into RSC as a primitive, but it's not the only way to build a RSC-compatible router and framework. There's a clear separation for features provided by the RSC spec and implementation. React Server Components is meant as a spec for components that work across compatible React frameworks.
+React Server Components has shipped in [Next.js App Router](/learn/start-a-new-react-project#nextjs-app-router). This showcases a deep integration of a router that really buys into RSC as a primitive, but it's not the only way to build a RSC-compatible router and framework. There's a clear separation for features provided by the RSC spec and implementation. React Server Components is meant as a spec for components that work across compatible React frameworks.
 
 We generally recommend using an existing framework, but if you need to build your own custom framework, it is possible. Building your own RSC-compatible framework is not as easy as we'd like it to be, mainly due to the deep bundler integration needed. The current generation of bundlers are great for use on the client, but they weren't designed with first-class support for splitting a single module graph between the server and the client. This is why we're now partnering directly with bundler developers to get the primitives for RSC built-in.
 
@@ -92,7 +92,7 @@ Since our last update, we've tested an experimental version of prerendering inte
 
 ## Transition Tracing {/*transition-tracing*/}
 
-The Transition Tracing API lets you detect when [React Transitions](/reference/react/useTransition) become slower and investigate why they may be slow. Following our last update, we have completed the initial design of the API and published an [RFC](https://github.com/reactjs/rfcs/pull/238). The basic capabilities have also been implemented. The project is currently on hold. We welcome feedback on the RFC and look forward to resuming its development to provide a better performance measurement tool for React. This will be particularly useful with routers built on top of React Transitions, like the [Next.js App Router](/learn/creating-a-react-app#nextjs-app-router).
+The Transition Tracing API lets you detect when [React Transitions](/reference/react/useTransition) become slower and investigate why they may be slow. Following our last update, we have completed the initial design of the API and published an [RFC](https://github.com/reactjs/rfcs/pull/238). The basic capabilities have also been implemented. The project is currently on hold. We welcome feedback on the RFC and look forward to resuming its development to provide a better performance measurement tool for React. This will be particularly useful with routers built on top of React Transitions, like the [Next.js App Router](/learn/start-a-new-react-project#nextjs-app-router).
 
 * * *
 In addition to this update, our team has made recent guest appearances on community podcasts and livestreams to speak more on our work and answer questions.

src/content/blog/2024/04/25/react-19-upgrade-guide.md

@@ -129,7 +129,7 @@ For a list of all available codemods, see the [`react-codemod` repo](https://git
 
 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/2024/12/05/react-19#error-handling) to reduce duplication by not re-throwing:
+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:
 
 - **Uncaught Errors**: Errors that are not caught by an Error Boundary are reported to `window.reportError`.
 - **Caught Errors**: Errors that are caught by an Error Boundary are reported to `console.error`.
@@ -499,7 +499,7 @@ function AutoselectingInput() {
 
 ### Deprecated: `element.ref` {/*deprecated-element-ref*/}
 
-React 19 supports [`ref` as a prop](/blog/2024/12/05/react-19#ref-as-a-prop), so we're deprecating the `element.ref` in place of `element.props.ref`.
+React 19 supports [`ref` as a prop](/blog/2024/04/25/react-19#ref-as-a-prop), so we're deprecating the `element.ref` in place of `element.props.ref`.
 
 Accessing `element.ref` will warn:
 

src/content/blog/2024/10/21/react-compiler-beta-release.md

@@ -72,11 +72,11 @@ Or, if you're using Yarn:
 yarn add -D eslint-plugin-react-compiler@beta
 </TerminalBlock>
 
-After installation you can enable the linter by [adding it to your ESLint config](/learn/react-compiler#installing-eslint-plugin-react-compiler). Using the linter helps identify Rules of React breakages, making it easier to adopt the compiler when it's fully released.
+After installation you can enable the linter by [adding it to your ESLint config](/learn/react-compiler/installation#eslint-integration). Using the linter helps identify Rules of React breakages, making it easier to adopt the compiler when it's fully released.
 
 ## Backwards Compatibility {/*backwards-compatibility*/}
 
-React Compiler produces code that depends on runtime APIs added in React 19, but we've since added support for the compiler to also work with React 17 and 18. If you are not on React 19 yet, in the Beta release you can now try out React Compiler by specifying a minimum `target` in your compiler config, and adding `react-compiler-runtime` as a dependency. [You can find docs on this here](/learn/react-compiler#using-react-compiler-with-react-17-or-18).
+React Compiler produces code that depends on runtime APIs added in React 19, but we've since added support for the compiler to also work with React 17 and 18. If you are not on React 19 yet, in the Beta release you can now try out React Compiler by specifying a minimum `target` in your compiler config, and adding `react-compiler-runtime` as a dependency. [You can find docs on this here](/reference/react-compiler/configuration#react-17-18).
 
 ## Using React Compiler in libraries {/*using-react-compiler-in-libraries*/}
 
@@ -86,7 +86,7 @@ React Compiler can also be used to compile libraries. Because React Compiler nee
 
 Because your code is pre-compiled, users of your library will not need to have the compiler enabled in order to benefit from the automatic memoization applied to your library. If your library targets apps not yet on React 19, specify a minimum `target` and add `react-compiler-runtime` as a direct dependency. The runtime package will use the correct implementation of APIs depending on the application's version, and polyfill the missing APIs if necessary.
 
-[You can find more docs on this here.](/learn/react-compiler#using-the-compiler-on-libraries)
+[You can find more docs on this here.](/reference/react-compiler/compiling-libraries)
 
 ## Opening up React Compiler Working Group to everyone {/*opening-up-react-compiler-working-group-to-everyone*/}
 

src/content/blog/2024/12/05/react-19.md

@@ -355,7 +355,7 @@ 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/start-a-new-react-project#which-features-make-up-the-react-teams-full-stack-architecture-vision). 
 
 
 <Note>
@@ -389,7 +389,7 @@ For more info, see the docs for [Directives](/reference/rsc/directives).
 
 Server Actions can be created in Server Components and passed as props to Client Components, or they can be imported and used in Client Components.
 
-For more, see the docs for [React Server Actions](/reference/rsc/server-functions).
+For more, see the docs for [React Server Actions](/reference/rsc/server-actions).
 
 ## Improvements in React 19 {/*improvements-in-react-19*/}
 

src/content/community/meetups.md

@@ -137,13 +137,17 @@ Bạn đã có React.js meetup tại quốc gia của bạn chưa? Thêm nó và
 ## Bồ Đào Nha {/*portugal*/}
 * [Lisbon](https://www.meetup.com/JavaScript-Lisbon/)
 
+<<<<<<< HEAD
 ## Scotland (Vương Quốc Anh) {/*scotland-uk*/}
 * [Edinburgh](https://www.meetup.com/React-Scotland/)
 
 ## Singapore {/*singapore*/}
 * [Singapore - React Knowledgeable](https://reactknowledgeable.org/)
 
 ## Tây Ban Nha {/*spain*/}
+=======
+## Spain {/*spain*/}
+>>>>>>> e07ac94bc2c1ffd817b13930977be93325e5bea9
 * [Barcelona](https://www.meetup.com/ReactJS-Barcelona/)
 
 ## Sri Lanka {/*sri-lanka*/}

src/content/learn/add-react-to-an-existing-project.md

@@ -20,11 +20,19 @@ Giả sử bạn có một ứng dụng web tại `example.com` được phát t
 
 Đây là cách chúng tôi đề xuất để cài đặt:
 
+<<<<<<< HEAD
 1. **Xây dựng phần React của ứng dụng của bạn** sử dụng một trong những [nền tảng ứng dụng (framework) sử dụng React](/learn/creating-a-react-app).
 2. **Chỉ định `/some-app` là *đường dẫn gốc*** trong cấu hình ứng dụng của bạn. (xem hướng dẫn với: [Next.js](https://nextjs.org/docs/app/api-reference/config/next-config-js/basePath), [Gatsby](https://www.gatsbyjs.com/docs/how-to/previews-deploys-hosting/path-prefix/)).
 3. **Cấu hình máy chủ của bạn hoặc một proxy** để tất cả các requests ở `/some-app/` được xử lý bởi ứng dụng React của bạn.
 
 Điều này đảm bảo phần React của ứng dụng của bạn có thể được [hưởng lợi từ các tiêu chuẩn tốt nhất](/learn/creating-a-react-app#full-stack-frameworks) đã được tích hợp sẵn trong các Frameworks đó.
+=======
+1. **Build the React part of your app** using one of the [React-based frameworks](/learn/start-a-new-react-project).
+2. **Specify `/some-app` as the *base path*** in your framework's configuration (here's how: [Next.js](https://nextjs.org/docs/app/api-reference/config/next-config-js/basePath), [Gatsby](https://www.gatsbyjs.com/docs/how-to/previews-deploys-hosting/path-prefix/)).
+3. **Configure your server or a proxy** so that all requests under `/some-app/` are handled by your React app.
+
+This ensures the React part of your app can [benefit from the best practices](/learn/build-a-react-app-from-scratch#consider-using-a-framework) baked into those frameworks.
+>>>>>>> e07ac94bc2c1ffd817b13930977be93325e5bea9
 
 Nhiều frameworks dựa trên React là full-stack và cho phép ứng dụng React của bạn tận dụng các tính năng của máy chủ. Tuy nhiên, bạn có thể sử dụng cùng một phương pháp ngay cả khi bạn không thể hoặc không muốn chạy JavaScript trên máy chủ. Trong trường hợp đó, hãy chuẩn bị HTML/CSS/JS export ([`next export` output](https://nextjs.org/docs/advanced-features/static-html-export) cho Next.js, mặc định cho Gatsby) tại `/some-app/`.
 
@@ -149,7 +157,11 @@ root.render(<NavigationBar />);
 
 Chú ý là nội dung HTML ban đầu từ `index.html` được giữ nguyên, nhưng component  `NavigationBar` React của bạn giờ đây hiển thị bên trong `<nav id="navigation">` từ trong HTML của bạn. Hãy đọc [`tài liệu sử dụng createRoot`](/reference/react-dom/client/createRoot#rendering-a-page-partially-built-with-react) để tìm hiểu thêm về cách hiển thị các component React trong một trang HTML hiện có.
 
+<<<<<<< HEAD
 Khi bạn sử dụng React với một dự án tồn tại trước đó, thường thì bạn sẽ bắt đầu với những component tương tác nhỏ (như nút bấm), và sau đó dần dần "tiến lên trước" cho tới khi toàn bộ trang web của bạn được xây dựng bằng React. Khi bạn đạt đến đó, chúng tôi khuyến nghị hãy chuyển đổi sang một [React framework](/learn/creating-a-react-app) ngay sau đó để có thể sử dụng tối ưu React.
+=======
+When you adopt React in an existing project, it's common to start with small interactive components (like buttons), and then gradually keep "moving upwards" until eventually your entire page is built with React. If you ever reach that point, we recommend migrating to [a React framework](/learn/start-a-new-react-project) right after to get the most out of React.
+>>>>>>> e07ac94bc2c1ffd817b13930977be93325e5bea9
 
 ## Sử dụng React Native trong một ứng dụng di động native hiện có {/*using-react-native-in-an-existing-native-mobile-app*/}