From 9db23d61294ab9aa74b81471bad51db6dfbcda6b Mon Sep 17 00:00:00 2001 From: Dmitry Titov <61434098+dimatitov@users.noreply.github.com> Date: Mon, 2 Jun 2025 12:34:46 -0300 Subject: [PATCH 01/23] fix: correct broken WAI-ARIA modal dialog link in createPortal reference (#7833) * fix link from ARIA dialog-modal * chore: trigger CLA recheck --- src/content/reference/react-dom/createPortal.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/content/reference/react-dom/createPortal.md b/src/content/reference/react-dom/createPortal.md index c04510f80..5717460df 100644 --- a/src/content/reference/react-dom/createPortal.md +++ b/src/content/reference/react-dom/createPortal.md @@ -240,7 +240,7 @@ export default function ModalContent({ onClose }) { It's important to make sure that your app is accessible when using portals. For instance, you may need to manage keyboard focus so that the user can move the focus in and out of the portal in a natural way. -Follow the [WAI-ARIA Modal Authoring Practices](https://www.w3.org/WAI/ARIA/apg/#dialog_modal) when creating modals. If you use a community package, ensure that it is accessible and follows these guidelines. +Follow the [WAI-ARIA Modal Authoring Practices](https://www.w3.org/WAI/ARIA/apg/patterns/dialog-modal) when creating modals. If you use a community package, ensure that it is accessible and follows these guidelines. From bbcb9af1c99e1fc148ff4f02982773c407b64e4c Mon Sep 17 00:00:00 2001 From: Shubham Gupta <50445450+shubhamui@users.noreply.github.com> Date: Mon, 2 Jun 2025 21:42:59 +0530 Subject: [PATCH 02/23] Update meetups.md adding React Rajasthan Community (#7831) Adding the React Community for Rajasthan India --- src/content/community/meetups.md | 1 + 1 file changed, 1 insertion(+) diff --git a/src/content/community/meetups.md b/src/content/community/meetups.md index 81fc5c210..b4da5cdff 100644 --- a/src/content/community/meetups.md +++ b/src/content/community/meetups.md @@ -88,6 +88,7 @@ Do you have a local React.js meetup? Add it here! (Please keep the list alphabet * [Delhi NCR](https://www.meetup.com/React-Delhi-NCR/) * [Mumbai](https://reactmumbai.dev) * [Pune](https://www.meetup.com/ReactJS-and-Friends/) +* [Rajasthan](https://reactrajasthan.com) ## Indonesia {/*indonesia*/} * [Indonesia](https://www.meetup.com/reactindonesia/) From a2d17d1218aa6559537b0aad9c4c12098b4197aa Mon Sep 17 00:00:00 2001 From: "G. van Dorland" Date: Mon, 2 Jun 2025 18:15:13 +0200 Subject: [PATCH 03/23] Update components-and-hooks-must-be-pure.md (#7830) Some grammar fixes, and language clarifications --- .../reference/rules/components-and-hooks-must-be-pure.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/content/reference/rules/components-and-hooks-must-be-pure.md b/src/content/reference/rules/components-and-hooks-must-be-pure.md index d3d54560e..6da6d49bb 100644 --- a/src/content/reference/rules/components-and-hooks-must-be-pure.md +++ b/src/content/reference/rules/components-and-hooks-must-be-pure.md @@ -207,7 +207,7 @@ A component's props and state are immutable [snapshots](learn/state-as-a-snapsho You can think of the props and state values as snapshots that are updated after rendering. For this reason, you don't modify the props or state variables directly: instead you pass new props, or use the setter function provided to you to tell React that state needs to update the next time the component is rendered. ### Don't mutate Props {/*props*/} -Props are immutable because if you mutate them, the application will produce inconsistent output, which can be hard to debug since it may or may not work depending on the circumstance. +Props are immutable because if you mutate them, the application will produce inconsistent output, which can be hard to debug as it may or may not work depending on the circumstances. ```js {2} function Post({ item }) { @@ -307,7 +307,7 @@ function useIconStyle(icon) { } ``` -If you were to mutate the Hooks arguments, the custom hook's memoization will become incorrect, so it's important to avoid doing that. +If you were to mutate the Hook's arguments, the custom hook's memoization will become incorrect, so it's important to avoid doing that. ```js {4} style = useIconStyle(icon); // `style` is memoized based on `icon` @@ -327,7 +327,7 @@ Similarly, it's important to not modify the return values of Hooks, as they may ## Values are immutable after being passed to JSX {/*values-are-immutable-after-being-passed-to-jsx*/} -Don't mutate values after they've been used in JSX. Move the mutation before the JSX is created. +Don't mutate values after they've been used in JSX. Move the mutation to before the JSX is created. When you use JSX in an expression, React may eagerly evaluate the JSX before the component finishes rendering. This means that mutating values after they've been passed to JSX can lead to outdated UIs, as React won't know to update the component's output. From 94424aed87efca6616c1b21945a04b69e333202e Mon Sep 17 00:00:00 2001 From: Julius Lundang Date: Tue, 3 Jun 2025 00:18:57 +0800 Subject: [PATCH 04/23] Update referencing-values-with-refs.md (#7829) Fixed invalid URL --- src/content/learn/referencing-values-with-refs.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/content/learn/referencing-values-with-refs.md b/src/content/learn/referencing-values-with-refs.md index 4faf18786..fab6599f2 100644 --- a/src/content/learn/referencing-values-with-refs.md +++ b/src/content/learn/referencing-values-with-refs.md @@ -464,7 +464,7 @@ export default function Toggle() { #### Fix debouncing {/*fix-debouncing*/} -In this example, all button click handlers are ["debounced".](https://redd.one/blog/debounce-vs-throttle) To see what this means, press one of the buttons. Notice how the message appears a second later. If you press the button while waiting for the message, the timer will reset. So if you keep clicking the same button fast many times, the message won't appear until a second *after* you stop clicking. Debouncing lets you delay some action until the user "stops doing things". +In this example, all button click handlers are ["debounced".](https://kettanaito.com/blog/debounce-vs-throttle) To see what this means, press one of the buttons. Notice how the message appears a second later. If you press the button while waiting for the message, the timer will reset. So if you keep clicking the same button fast many times, the message won't appear until a second *after* you stop clicking. Debouncing lets you delay some action until the user "stops doing things". This example works, but not quite as intended. The buttons are not independent. To see the problem, click one of the buttons, and then immediately click another button. You'd expect that after a delay, you would see both button's messages. But only the last button's message shows up. The first button's message gets lost. From 172f0b995857a7ac4c5c5e5ca7ea90e36cce9ca0 Mon Sep 17 00:00:00 2001 From: jinsoo <89149734+Jinsoo1004@users.noreply.github.com> Date: Tue, 3 Jun 2025 01:33:18 +0900 Subject: [PATCH 05/23] Add uwu click animation (#7822) --- src/components/Layout/TopNav/TopNav.tsx | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/components/Layout/TopNav/TopNav.tsx b/src/components/Layout/TopNav/TopNav.tsx index cc5c654e3..a4b431189 100644 --- a/src/components/Layout/TopNav/TopNav.tsx +++ b/src/components/Layout/TopNav/TopNav.tsx @@ -266,7 +266,9 @@ export default function TopNav({
- + logo by @sawaratsuki1004 Date: Mon, 2 Jun 2025 19:34:02 +0300 Subject: [PATCH 06/23] Fix typo and clarily that a server function reference is created only when that function is used by a Client Component (#7746) --- src/content/reference/rsc/server-functions.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/content/reference/rsc/server-functions.md b/src/content/reference/rsc/server-functions.md index 770f5a705..2603c1099 100644 --- a/src/content/reference/rsc/server-functions.md +++ b/src/content/reference/rsc/server-functions.md @@ -28,7 +28,7 @@ To support Server Functions as a bundler or framework, we recommend pinning to a -When a Server Function is defined with the [`"use server"`](/reference/rsc/use-server) directive, your framework will automatically create a reference to the server function, and pass that reference to the Client Component. When that function is called on the client, React will send a request to the server to execute the function, and return the result. +When a Server Function is defined with the [`"use server"`](/reference/rsc/use-server) directive, your framework will automatically create a reference to the Server Function, and pass that reference to the Client Component. When that function is called on the client, React will send a request to the server to execute the function, and return the result. Server Functions can be created in Server Components and passed as props to Client Components, or they can be imported and used in Client Components. From 06965de1d062a477f71f53c204051e770b65c822 Mon Sep 17 00:00:00 2001 From: Mike DiDomizio Date: Mon, 2 Jun 2025 12:34:47 -0400 Subject: [PATCH 07/23] Add React Alicante 2025 to Conferences page (#7674) --- src/content/community/conferences.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/content/community/conferences.md b/src/content/community/conferences.md index a2bcd196e..a97f3d5b4 100644 --- a/src/content/community/conferences.md +++ b/src/content/community/conferences.md @@ -45,6 +45,11 @@ September 2-4, 2025. Wrocław, Poland. [Website](https://www.reactuniverseconf.com/) - [Twitter](https://twitter.com/react_native_eu) - [LinkedIn](https://www.linkedin.com/events/reactuniverseconf7163919537074118657/) +### React Alicante 2025 {/*react-alicante-2025*/} +October 2-4, 2025. Alicante, Spain. + +[Website](https://reactalicante.es/) - [Twitter](https://x.com/ReactAlicante) - [Bluesky](https://bsky.app/profile/reactalicante.es) - [YouTube](https://www.youtube.com/channel/UCaSdUaITU1Cz6PvC97A7e0w) + ### React Conf 2025 {/*react-conf-2025*/} October 7-8, 2025. Henderson, Nevada, USA and free livestream From e90179047b1e7dd1ef19a37eed52765d8e04c484 Mon Sep 17 00:00:00 2001 From: Aakansha Doshi Date: Mon, 2 Jun 2025 22:06:20 +0530 Subject: [PATCH 08/23] fix: use const where applicable in examples for keeping components pure (#7819) --- src/content/learn/keeping-components-pure.md | 26 ++++++++++---------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/src/content/learn/keeping-components-pure.md b/src/content/learn/keeping-components-pure.md index 6d4f55763..70049e58e 100644 --- a/src/content/learn/keeping-components-pure.md +++ b/src/content/learn/keeping-components-pure.md @@ -175,7 +175,7 @@ function Cup({ guest }) { } export default function TeaGathering() { - let cups = []; + const cups = []; for (let i = 1; i <= 12; i++) { cups.push(); } @@ -245,7 +245,7 @@ Rendering is a *calculation*, it shouldn't try to "do" things. Can you express t ```js src/Clock.js active export default function Clock({ time }) { - let hours = time.getHours(); + const hours = time.getHours(); if (hours >= 0 && hours <= 6) { document.getElementById('time').className = 'night'; } else { @@ -307,7 +307,7 @@ You can fix this component by calculating the `className` and including it in th ```js src/Clock.js active export default function Clock({ time }) { - let hours = time.getHours(); + const hours = time.getHours(); let className; if (hours >= 0 && hours <= 6) { className = 'night'; @@ -606,14 +606,14 @@ export default function StoryTray({ stories }) { import { useState, useEffect } from 'react'; import StoryTray from './StoryTray.js'; -let initialStories = [ +const initialStories = [ {id: 0, label: "Ankit's Story" }, {id: 1, label: "Taylor's Story" }, ]; export default function App() { - let [stories, setStories] = useState([...initialStories]) - let time = useTime(); + const [stories, setStories] = useState([...initialStories]) + const time = useTime(); // HACK: Prevent the memory from growing forever while you read docs. // We're breaking our own rules here. @@ -702,14 +702,14 @@ export default function StoryTray({ stories }) { import { useState, useEffect } from 'react'; import StoryTray from './StoryTray.js'; -let initialStories = [ +const initialStories = [ {id: 0, label: "Ankit's Story" }, {id: 1, label: "Taylor's Story" }, ]; export default function App() { - let [stories, setStories] = useState([...initialStories]) - let time = useTime(); + const [stories, setStories] = useState([...initialStories]) + const time = useTime(); // HACK: Prevent the memory from growing forever while you read docs. // We're breaking our own rules here. @@ -770,7 +770,7 @@ Alternatively, you could create a _new_ array (by copying the existing one) befo ```js src/StoryTray.js active export default function StoryTray({ stories }) { // Copy the array! - let storiesToDisplay = stories.slice(); + const storiesToDisplay = stories.slice(); // Does not affect the original array: storiesToDisplay.push({ @@ -794,14 +794,14 @@ export default function StoryTray({ stories }) { import { useState, useEffect } from 'react'; import StoryTray from './StoryTray.js'; -let initialStories = [ +const initialStories = [ {id: 0, label: "Ankit's Story" }, {id: 1, label: "Taylor's Story" }, ]; export default function App() { - let [stories, setStories] = useState([...initialStories]) - let time = useTime(); + const [stories, setStories] = useState([...initialStories]) + const time = useTime(); // HACK: Prevent the memory from growing forever while you read docs. // We're breaking our own rules here. From 87cef4a918be9873c9fed9115688de46e657ee71 Mon Sep 17 00:00:00 2001 From: Jan Kassens Date: Tue, 3 Jun 2025 12:28:27 -0400 Subject: [PATCH 09/23] Remove `forwardRef` reference from API listing (#7837) This API is now under "Legacy APIs" and should probably no longer be listed as a "modern API". --- src/content/reference/react/apis.md | 1 - 1 file changed, 1 deletion(-) diff --git a/src/content/reference/react/apis.md b/src/content/reference/react/apis.md index cbab4a0e6..6cb990908 100644 --- a/src/content/reference/react/apis.md +++ b/src/content/reference/react/apis.md @@ -11,7 +11,6 @@ In addition to [Hooks](/reference/react) and [Components](/reference/react/compo --- * [`createContext`](/reference/react/createContext) lets you define and provide context to the child components. Used with [`useContext`.](/reference/react/useContext) -* [`forwardRef`](/reference/react/forwardRef) lets your component expose a DOM node as a ref to the parent. Used with [`useRef`.](/reference/react/useRef) * [`lazy`](/reference/react/lazy) lets you defer loading a component's code until it's rendered for the first time. * [`memo`](/reference/react/memo) lets your component skip re-renders with same props. Used with [`useMemo`](/reference/react/useMemo) and [`useCallback`.](/reference/react/useCallback) * [`startTransition`](/reference/react/startTransition) lets you mark a state update as non-urgent. Similar to [`useTransition`.](/reference/react/useTransition) From c60173f9a4be1021260327716fc4f3ba26295d4e Mon Sep 17 00:00:00 2001 From: minami yoshihiko Date: Wed, 4 Jun 2025 01:29:34 +0900 Subject: [PATCH 10/23] docs: Refactor context provider usage (#7793) * delete provider * Fix NavContext usage in Talks component * Fix TocContext and LanguagesContext usage in Page component * Fix IllustrationContext usage in IllustrationBlock component * Fix LevelContext and TasksContext usage in managing-state.md * Fix ThemeContext and Context usage in MyApp component * Fix HighlightContext usage in List component * Fix ThemeContext usage in MyApp component * Fix ErrorDecoderContext usage in ErrorDecoderPage component * Fix ThemeContext usage in MyPage and MyApp components * Fix ThemeContext usage in MyApp component * Fix useContext documentation to correct context provider references * Fix context provider references in createContext documentation * prettier * Update src/content/reference/react/createContext.md --------- Co-authored-by: Ricky --- src/components/Layout/HomeContent.js | 4 +- src/components/Layout/Page.tsx | 8 +- src/components/MDX/MDXComponents.tsx | 4 +- src/content/learn/managing-state.md | 12 +-- .../scaling-up-with-reducer-and-context.md | 56 +++++------ src/content/learn/typescript.md | 8 +- src/content/reference/react/Component.md | 8 +- src/content/reference/react/cloneElement.md | 8 +- src/content/reference/react/createContext.md | 27 ++--- src/content/reference/react/memo.md | 4 +- src/content/reference/react/use.md | 8 +- src/content/reference/react/useContext.md | 98 +++++++++---------- src/pages/errors/[errorCode].tsx | 4 +- 13 files changed, 124 insertions(+), 125 deletions(-) diff --git a/src/components/Layout/HomeContent.js b/src/components/Layout/HomeContent.js index 83f5fa4f2..22b75016b 100644 --- a/src/components/Layout/HomeContent.js +++ b/src/components/Layout/HomeContent.js @@ -1172,7 +1172,7 @@ async function Talks({ confId }) { } right={ - + - + } /> ); diff --git a/src/components/Layout/Page.tsx b/src/components/Layout/Page.tsx index ec3a6eba0..c3224e517 100644 --- a/src/components/Layout/Page.tsx +++ b/src/components/Layout/Page.tsx @@ -82,11 +82,9 @@ export function Page({ 'max-w-7xl mx-auto', section === 'blog' && 'lg:flex lg:flex-col lg:items-center' )}> - - - {children} - - + + {children} +
{!isBlogIndex && ( )); return ( - +
{sequential ? (
    @@ -369,7 +369,7 @@ function IllustrationBlock({ )}
- + ); } diff --git a/src/content/learn/managing-state.md b/src/content/learn/managing-state.md index 93bcc10fd..f2f02c64b 100644 --- a/src/content/learn/managing-state.md +++ b/src/content/learn/managing-state.md @@ -741,9 +741,9 @@ export default function Section({ children }) { const level = useContext(LevelContext); return (
- + {children} - +
); } @@ -836,13 +836,13 @@ export function TasksProvider({ children }) { ); return ( - - + {children} - - + + ); } 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 c3da0c637..e193333b9 100644 --- a/src/content/learn/scaling-up-with-reducer-and-context.md +++ b/src/content/learn/scaling-up-with-reducer-and-context.md @@ -461,11 +461,11 @@ export default function TaskApp() { const [tasks, dispatch] = useReducer(tasksReducer, initialTasks); // ... return ( - - + + ... - - + + ); } ``` @@ -509,8 +509,8 @@ export default function TaskApp() { } return ( - - + +

Day off in Kyoto

- - + + ); } @@ -676,13 +676,13 @@ In the next step, you will remove prop passing. Now you don't need to pass the list of tasks or the event handlers down the tree: ```js {4-5} - - + +

Day off in Kyoto

- - + + ``` Instead, any component that needs the task list can read it from the `TaskContext`: @@ -730,13 +730,13 @@ export default function TaskApp() { ); return ( - - + +

Day off in Kyoto

- - + + ); } @@ -921,11 +921,11 @@ export function TasksProvider({ children }) { const [tasks, dispatch] = useReducer(tasksReducer, initialTasks); return ( - - + + {children} - - + + ); } ``` @@ -963,11 +963,11 @@ export function TasksProvider({ children }) { ); return ( - - + + {children} - - + + ); } @@ -1174,11 +1174,11 @@ export function TasksProvider({ children }) { ); return ( - - + + {children} - - + + ); } diff --git a/src/content/learn/typescript.md b/src/content/learn/typescript.md index 7edf8eb6e..bf7483d1c 100644 --- a/src/content/learn/typescript.md +++ b/src/content/learn/typescript.md @@ -260,9 +260,9 @@ export default function MyApp() { const [theme, setTheme] = useState('light'); return ( - + - + ) } @@ -310,9 +310,9 @@ export default function MyApp() { const object = useMemo(() => ({ kind: "complex" }), []); return ( - + - + ) } diff --git a/src/content/reference/react/Component.md b/src/content/reference/react/Component.md index 8e58af8ff..09acbc7d6 100644 --- a/src/content/reference/react/Component.md +++ b/src/content/reference/react/Component.md @@ -1814,9 +1814,9 @@ function Form() { export default function MyApp() { return ( - +
- + ) } ``` @@ -1900,9 +1900,9 @@ function Form() { export default function MyApp() { return ( - + - + ) } ``` diff --git a/src/content/reference/react/cloneElement.md b/src/content/reference/react/cloneElement.md index 6bcea51b0..4e29ff203 100644 --- a/src/content/reference/react/cloneElement.md +++ b/src/content/reference/react/cloneElement.md @@ -414,9 +414,9 @@ export default function List({ items, renderItem }) { {items.map((item, index) => { const isHighlighted = index === selectedIndex; return ( - + {renderItem(item)} - + ); })} ``` @@ -472,12 +472,12 @@ export default function List({ items, renderItem }) { {items.map((item, index) => { const isHighlighted = index === selectedIndex; return ( - {renderItem(item)} - + ); })}
diff --git a/src/content/reference/react/createContext.md b/src/content/reference/react/createContext.md index 03b09f8af..5b2cc0eb2 100644 --- a/src/content/reference/react/createContext.md +++ b/src/content/reference/react/createContext.md @@ -38,14 +38,15 @@ const ThemeContext = createContext('light'); `createContext` returns a context object. -**The context object itself does not hold any information.** It represents _which_ context other components read or provide. Typically, you will use [`SomeContext.Provider`](#provider) in components above to specify the context value, and call [`useContext(SomeContext)`](/reference/react/useContext) in components below to read it. The context object has a few properties: +**The context object itself does not hold any information.** It represents _which_ context other components read or provide. Typically, you will use [`SomeContext`](#provider) in components above to specify the context value, and call [`useContext(SomeContext)`](/reference/react/useContext) in components below to read it. The context object has a few properties: -* `SomeContext.Provider` lets you provide the context value to components. +* `SomeContext` lets you provide the context value to components. * `SomeContext.Consumer` is an alternative and rarely used way to read the context value. +* `SomeContext.Provider` is a legacy way to provide the context value before React 19. --- -### `SomeContext.Provider` {/*provider*/} +### `SomeContext` {/*provider*/} Wrap your components into a context provider to specify the value of this context for all components inside: @@ -54,9 +55,9 @@ function App() { const [theme, setTheme] = useState('light'); // ... return ( - + - + ); } ``` @@ -141,11 +142,11 @@ function App() { // ... return ( - - + + - - + + ); } ``` @@ -187,11 +188,11 @@ import { ThemeContext, AuthContext } from './Contexts.js'; function App() { // ... return ( - - + + - - + + ); } ``` diff --git a/src/content/reference/react/memo.md b/src/content/reference/react/memo.md index 26fa9ed9c..01d6290f1 100644 --- a/src/content/reference/react/memo.md +++ b/src/content/reference/react/memo.md @@ -226,12 +226,12 @@ export default function MyApp() { } return ( - + - + ); } diff --git a/src/content/reference/react/use.md b/src/content/reference/react/use.md index 557a71cad..91e19c4b4 100644 --- a/src/content/reference/react/use.md +++ b/src/content/reference/react/use.md @@ -74,9 +74,9 @@ To pass context to a `Button`, wrap it or one of its parent components into the ```js [[1, 3, "ThemeContext"], [2, 3, "\\"dark\\""], [1, 5, "ThemeContext"]] function MyPage() { return ( - + - + ); } @@ -116,9 +116,9 @@ const ThemeContext = createContext(null); export default function MyApp() { return ( - + - + ) } diff --git a/src/content/reference/react/useContext.md b/src/content/reference/react/useContext.md index ce06e7035..f69c49af9 100644 --- a/src/content/reference/react/useContext.md +++ b/src/content/reference/react/useContext.md @@ -38,11 +38,11 @@ function MyComponent() { #### Returns {/*returns*/} -`useContext` returns the context value for the calling component. It is determined as the `value` passed to the closest `SomeContext.Provider` above the calling component in the tree. If there is no such provider, then the returned value will be the `defaultValue` you have passed to [`createContext`](/reference/react/createContext) for that context. The returned value is always up-to-date. React automatically re-renders components that read some context if it changes. +`useContext` returns the context value for the calling component. It is determined as the `value` passed to the closest `SomeContext` above the calling component in the tree. If there is no such provider, then the returned value will be the `defaultValue` you have passed to [`createContext`](/reference/react/createContext) for that context. The returned value is always up-to-date. React automatically re-renders components that read some context if it changes. #### Caveats {/*caveats*/} -* `useContext()` call in a component is not affected by providers returned from the *same* component. The corresponding `` **needs to be *above*** the component doing the `useContext()` call. +* `useContext()` call in a component is not affected by providers returned from the *same* component. The corresponding `` **needs to be *above*** the component doing the `useContext()` call. * React **automatically re-renders** all the children that use a particular context starting from the provider that receives a different `value`. The previous and the next values are compared with the [`Object.is`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is) comparison. Skipping re-renders with [`memo`](/reference/react/memo) does not prevent the children receiving fresh context values. * If your build system produces duplicates modules in the output (which can happen with symlinks), this can break context. Passing something via context only works if `SomeContext` that you use to provide context and `SomeContext` that you use to read it are ***exactly* the same object**, as determined by a `===` comparison. @@ -70,9 +70,9 @@ To pass context to a `Button`, wrap it or one of its parent components into the ```js [[1, 3, "ThemeContext"], [2, 3, "\\"dark\\""], [1, 5, "ThemeContext"]] function MyPage() { return ( - + - + ); } @@ -98,9 +98,9 @@ const ThemeContext = createContext(null); export default function MyApp() { return ( - + - + ) } @@ -183,14 +183,14 @@ Often, you'll want the context to change over time. To update context, combine i function MyPage() { const [theme, setTheme] = useState('dark'); return ( - + - + ); } ``` @@ -213,7 +213,7 @@ const ThemeContext = createContext(null); export default function MyApp() { const [theme, setTheme] = useState('light'); return ( - + - + ) } @@ -317,14 +317,14 @@ const CurrentUserContext = createContext(null); export default function MyApp() { const [currentUser, setCurrentUser] = useState(null); return ( - - + ); } @@ -411,8 +411,8 @@ export default function MyApp() { const [theme, setTheme] = useState('light'); const [currentUser, setCurrentUser] = useState(null); return ( - - + Use dark mode - - + + ) } @@ -596,16 +596,16 @@ export default function MyApp() { function MyProviders({ children, theme, setTheme }) { const [currentUser, setCurrentUser] = useState(null); return ( - - + {children} - - + + ); } @@ -775,11 +775,11 @@ export function TasksProvider({ children }) { ); return ( - - + + {children} - - + + ); } @@ -978,9 +978,9 @@ export default function MyApp() { const [theme, setTheme] = useState('light'); return ( <> - + - + - +
- + ); } @@ -1230,9 +1230,9 @@ export default function Section({ children }) { const level = useContext(LevelContext); return (
- + {children} - +
); } @@ -1302,9 +1302,9 @@ function MyApp() { } return ( - + - + ); } ``` @@ -1330,9 +1330,9 @@ function MyApp() { }), [currentUser, login]); return ( - + - + ); } ``` @@ -1349,8 +1349,8 @@ Read more about [`useMemo`](/reference/react/useMemo#skipping-re-rendering-of-co There are a few common ways that this can happen: -1. You're rendering `` in the same component (or below) as where you're calling `useContext()`. Move `` *above and outside* the component calling `useContext()`. -2. You may have forgotten to wrap your component with ``, or you might have put it in a different part of the tree than you thought. Check whether the hierarchy is right using [React DevTools.](/learn/react-developer-tools) +1. You're rendering `` in the same component (or below) as where you're calling `useContext()`. Move `` *above and outside* the component calling `useContext()`. +2. You may have forgotten to wrap your component with ``, or you might have put it in a different part of the tree than you thought. Check whether the hierarchy is right using [React DevTools.](/learn/react-developer-tools) 3. You might be running into some build issue with your tooling that causes `SomeContext` as seen from the providing component and `SomeContext` as seen by the reading component to be two different objects. This can happen if you use symlinks, for example. You can verify this by assigning them to globals like `window.SomeContext1` and `window.SomeContext2` and then checking whether `window.SomeContext1 === window.SomeContext2` in the console. If they're not the same, fix that issue on the build tool level. ### I am always getting `undefined` from my context although the default value is different {/*i-am-always-getting-undefined-from-my-context-although-the-default-value-is-different*/} @@ -1359,9 +1359,9 @@ You might have a provider without a `value` in the tree: ```js {1,2} // 🚩 Doesn't work: no value prop - +
``` @@ -270,8 +270,8 @@ import db from './database'; async function Page({id}) { // Will suspend the Server Component. const note = await db.notes.get(id); - - // NOTE: not awaited, will start here and await on the client. + + // NOTE: not awaited, will start here and await on the client. const commentsPromise = db.comments.get(note.id); return (
diff --git a/src/content/reference/rsc/use-client.md b/src/content/reference/rsc/use-client.md index e259585c4..5a0a7d96b 100644 --- a/src/content/reference/rsc/use-client.md +++ b/src/content/reference/rsc/use-client.md @@ -41,7 +41,7 @@ export default function RichTextEditor({ timestamp, text }) { } ``` -When a file marked with `'use client'` is imported from a Server Component, [compatible bundlers](/learn/start-a-new-react-project#bleeding-edge-react-frameworks) will treat the module import as a boundary between server-run and client-run code. +When a file marked with `'use client'` is imported from a Server Component, [compatible bundlers](/learn/start-a-new-react-project#full-stack-frameworks) will treat the module import as a boundary between server-run and client-run code. As dependencies of `RichTextEditor`, `formatDate` and `Button` will also be evaluated on the client regardless of whether their modules contain a `'use client'` directive. Note that a single module may be evaluated on the server when imported from server code and on the client when imported from client code. From c0c955ed1d1c4fe3bf3e18c06a8d121902a01619 Mon Sep 17 00:00:00 2001 From: Noritaka Kobayashi Date: Sun, 29 Jun 2025 04:20:02 +0900 Subject: [PATCH 17/23] chore: remove unused date-fns (#7856) --- package.json | 1 - yarn.lock | 5 ----- 2 files changed, 6 deletions(-) diff --git a/package.json b/package.json index 6d6b53f92..918d42fa2 100644 --- a/package.json +++ b/package.json @@ -30,7 +30,6 @@ "@radix-ui/react-context-menu": "^2.1.5", "body-scroll-lock": "^3.1.3", "classnames": "^2.2.6", - "date-fns": "^2.16.1", "debounce": "^1.2.1", "github-slugger": "^1.3.0", "next": "15.1.0", diff --git a/yarn.lock b/yarn.lock index a118cbeda..e866a206b 100644 --- a/yarn.lock +++ b/yarn.lock @@ -2799,11 +2799,6 @@ data-view-byte-offset@^1.0.0: es-errors "^1.3.0" is-data-view "^1.0.1" -date-fns@^2.16.1: - version "2.28.0" - resolved "https://registry.npmjs.org/date-fns/-/date-fns-2.28.0.tgz" - integrity sha512-8d35hViGYx/QH0icHYCeLmsLmMUheMmTyV9Fcm6gvNwdw31yXXH+O85sOBJ+OLnLQMKZowvpKb6FgMIQjcpvQw== - debounce@^1.2.1: version "1.2.1" resolved "https://registry.npmjs.org/debounce/-/debounce-1.2.1.tgz" From b79ad220a4505415248892b881baa8f0ea1dff1d Mon Sep 17 00:00:00 2001 From: Batuhan Tomo <91488737+Rekl0w@users.noreply.github.com> Date: Wed, 2 Jul 2025 18:57:33 +0300 Subject: [PATCH 18/23] chore: fix typo in resource and metadata components documentation (#7006) From 341c312916e1b657262bbe14b134a6f1779fecf1 Mon Sep 17 00:00:00 2001 From: Dipesh B C <50456672+bcdipesh@users.noreply.github.com> Date: Wed, 2 Jul 2025 12:47:23 -0400 Subject: [PATCH 19/23] fix: correct typo in scaling-up-with-reducer-and-context.md (#7390) Fix typo in the 'Step 3: Use context anywhere in the tree' section by changing TaskContext to TasksContext for accuracy. --- src/content/learn/scaling-up-with-reducer-and-context.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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 91fb6803f..fe1762d8e 100644 --- a/src/content/learn/scaling-up-with-reducer-and-context.md +++ b/src/content/learn/scaling-up-with-reducer-and-context.md @@ -685,7 +685,7 @@ Now you don't need to pass the list of tasks or the event handlers down the tree ``` -Instead, any component that needs the task list can read it from the `TaskContext`: +Instead, any component that needs the task list can read it from the `TasksContext`: ```js {2} export default function TaskList() { From 48460207db61a657b31e57b9cbf7356b3a531555 Mon Sep 17 00:00:00 2001 From: Ricky Date: Wed, 9 Jul 2025 11:37:57 -0400 Subject: [PATCH 20/23] fix flushSync link (#7862) --- src/content/reference/react-dom/client/createRoot.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/content/reference/react-dom/client/createRoot.md b/src/content/reference/react-dom/client/createRoot.md index adc6a8d37..cb533ec78 100644 --- a/src/content/reference/react-dom/client/createRoot.md +++ b/src/content/reference/react-dom/client/createRoot.md @@ -90,7 +90,7 @@ React will display `` in the `root`, and take over managing the DOM insid * If you call `render` on the same root more than once, React will update the DOM as necessary to reflect the latest JSX you passed. React will decide which parts of the DOM can be reused and which need to be recreated by ["matching it up"](/learn/preserving-and-resetting-state) with the previously rendered tree. Calling `render` on the same root again is similar to calling the [`set` function](/reference/react/useState#setstate) on the root component: React avoids unnecessary DOM updates. -* 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/client/flushSync) to ensure the initial render runs fully synchronously. +* 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. ```js const root = createRoot(document.getElementById('root')); From 84a56968d92b9a9e9bbac1ca13011e159e815dc1 Mon Sep 17 00:00:00 2001 From: Simon Schick Date: Thu, 10 Jul 2025 07:00:09 -0700 Subject: [PATCH 21/23] docs(react): fix grammar in forward ref deprecation message (#7864) --- src/content/reference/react/forwardRef.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/content/reference/react/forwardRef.md b/src/content/reference/react/forwardRef.md index 5b0e679b8..d035b9741 100644 --- a/src/content/reference/react/forwardRef.md +++ b/src/content/reference/react/forwardRef.md @@ -6,7 +6,7 @@ title: forwardRef In React 19, `forwardRef` is no longer necessary. Pass `ref` as a prop instead. -`forwardRef` will deprecated in a future release. Learn more [here](/blog/2024/04/25/react-19#ref-as-a-prop). +`forwardRef` will be deprecated in a future release. Learn more [here](/blog/2024/04/25/react-19#ref-as-a-prop). From e245b7769425f2cb3b8781baad2120074854b6c9 Mon Sep 17 00:00:00 2001 From: lauren Date: Fri, 18 Jul 2025 17:19:40 -0400 Subject: [PATCH 22/23] [be] Add deadlinks script (#7879) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit While rewriting the compiler docs I happened to notice some deadlinks. This PR adds a new `yarn deadlinks` script to identify all deadlinks. I decided to make this a script for now for simplicity but in the future could be ported to an ESlint rule. The script handles: - [x] checks images correctly (images are stored in /public but links can omit the /public) - [x] looks up React error codes for dynamic error pages - [x] lints links to contributors and uses URL from acknowledgements page if the member is no longer active on the core team - [x] special injected anchor tags like #recap and #challenges Example: ``` yarn run v1.22.22 $ node scripts/deadLinkChecker.js Checking 177 markdown files... 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URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/meta.md:33:23 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/option.md:39:25 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/progress.md:33:27 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/script.md:34:25 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/select.md:39:25 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/style.md:33:24 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/textarea.md:33:27 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/title.md:33:24 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/server/index.md:7:182 Link text: framework URL: /learn/start-a-new-react-project#production-grade-react-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/react-dom/static/index.md:7:146 Link text: framework URL: /learn/start-a-new-react-project#production-grade-react-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/blog/2023/03/16/introducing-react-dev.md:45:5 Link text: API Reference URL: /reference ✗ Target file not found for: /reference src/content/blog/2023/03/16/introducing-react-dev.md:610:117 Link text: Alternatives URL: /reference/react-dom/findDOMNode#alternatives ✗ Target file not found for: /reference/react-dom/findDOMNode src/content/blog/2023/03/22/react-labs-what-we-have-been-working-on-march-2023.md:34:40 Link text: Next.js App Router URL: /learn/start-a-new-react-project#nextjs-app-router ✗ Target file not found for: /learn/start-a-new-react-project src/content/blog/2023/03/22/react-labs-what-we-have-been-working-on-march-2023.md:95:605 Link text: Next.js App Router URL: /learn/start-a-new-react-project#nextjs-app-router ✗ Target file not found for: /learn/start-a-new-react-project src/content/blog/2024/02/15/react-labs-what-we-have-been-working-on-february-2024.md:110:3 Link text: Sathya Gunasekaran URL: /community/team#sathya-gunasekaran ✗ Contributor link should be updated to: https://github.com/gsathya src/content/blog/2024/04/25/react-19-upgrade-guide.md:132:20 Link text: improved how errors are handled URL: /blog/2024/04/25/react-19#error-handling ✗ Target file not found for: /blog/2024/04/25/react-19 src/content/blog/2024/04/25/react-19-upgrade-guide.md:502:19 Link text: `ref` as a prop URL: /blog/2024/04/25/react-19#ref-as-a-prop ✗ Target file not found for: /blog/2024/04/25/react-19 src/content/blog/2024/12/05/react-19.md:358:391 Link text: Full-stack React Architecture URL: /learn/start-a-new-react-project#which-features-make-up-the-react-teams-full-stack-architecture-vision ✗ Target file not found for: /learn/start-a-new-react-project src/content/blog/2024/12/05/react-19.md:392:28 Link text: React Server Actions URL: /reference/rsc/server-actions ✗ Target file not found for: /reference/rsc/server-actions src/content/blog/2025/04/23/react-labs-view-transitions-activity-and-more.md:2498:37 Link text: view transition classes URL: /reference/react/ViewTransition#view-transition-classes ✗ Anchor #view-transition-classes not found in reference/react/ViewTransition.md Found 58 dead links out of 1555 total links info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command. ``` --- package.json | 6 +- scripts/deadLinkChecker.js | 342 +++++++++++++++++++++++++++++++++++++ yarn.lock | 16 +- 3 files changed, 354 insertions(+), 10 deletions(-) create mode 100644 scripts/deadLinkChecker.js diff --git a/package.json b/package.json index 918d42fa2..c1cd16741 100644 --- a/package.json +++ b/package.json @@ -15,12 +15,13 @@ "prettier:diff": "yarn nit:source", "lint-heading-ids": "node scripts/headingIdLinter.js", "fix-headings": "node scripts/headingIdLinter.js --fix", - "ci-check": "npm-run-all prettier:diff --parallel lint tsc lint-heading-ids rss", + "ci-check": "npm-run-all prettier:diff --parallel lint tsc lint-heading-ids rss deadlinks", "tsc": "tsc --noEmit", "start": "next start", "postinstall": "is-ci || husky install .husky", "check-all": "npm-run-all prettier lint:fix tsc rss", - "rss": "node scripts/generateRss.js" + "rss": "node scripts/generateRss.js", + "deadlinks": "node scripts/deadLinkChecker.js" }, "dependencies": { "@codesandbox/sandpack-react": "2.13.5", @@ -61,6 +62,7 @@ "autoprefixer": "^10.4.2", "babel-eslint": "10.x", "babel-plugin-react-compiler": "19.0.0-beta-e552027-20250112", + "chalk": "4.1.2", "eslint": "7.x", "eslint-config-next": "12.0.3", "eslint-config-react-app": "^5.2.1", diff --git a/scripts/deadLinkChecker.js b/scripts/deadLinkChecker.js new file mode 100644 index 000000000..ab8761e26 --- /dev/null +++ b/scripts/deadLinkChecker.js @@ -0,0 +1,342 @@ +#!/usr/bin/env node + +const fs = require('fs'); +const path = require('path'); +const globby = require('globby'); +const chalk = require('chalk'); + +const CONTENT_DIR = path.join(__dirname, '../src/content'); +const PUBLIC_DIR = path.join(__dirname, '../public'); +const fileCache = new Map(); +const anchorMap = new Map(); // Map> +const contributorMap = new Map(); // Map +let errorCodes = new Set(); + +async function readFileWithCache(filePath) { + if (!fileCache.has(filePath)) { + try { + const content = await fs.promises.readFile(filePath, 'utf8'); + fileCache.set(filePath, content); + } catch (error) { + throw new Error(`Failed to read file ${filePath}: ${error.message}`); + } + } + return fileCache.get(filePath); +} + +async function fileExists(filePath) { + try { + await fs.promises.access(filePath, fs.constants.R_OK); + return true; + } catch { + return false; + } +} + +function getMarkdownFiles() { + // Convert Windows paths to POSIX for globby compatibility + const baseDir = CONTENT_DIR.replace(/\\/g, '/'); + const patterns = [ + path.posix.join(baseDir, '**/*.md'), + path.posix.join(baseDir, '**/*.mdx'), + ]; + return globby.sync(patterns); +} + +function extractAnchorsFromContent(content) { + const anchors = new Set(); + + // MDX-style heading IDs: {/*anchor-id*/} + const mdxPattern = /\{\/\*([a-zA-Z0-9-_]+)\*\/\}/g; + let match; + while ((match = mdxPattern.exec(content)) !== null) { + anchors.add(match[1].toLowerCase()); + } + + // HTML id attributes + const htmlIdPattern = /\sid=["']([a-zA-Z0-9-_]+)["']/g; + while ((match = htmlIdPattern.exec(content)) !== null) { + anchors.add(match[1].toLowerCase()); + } + + // Markdown heading with explicit ID: ## Heading {#anchor-id} + const markdownHeadingPattern = /^#+\s+.*\{#([a-zA-Z0-9-_]+)\}/gm; + while ((match = markdownHeadingPattern.exec(content)) !== null) { + anchors.add(match[1].toLowerCase()); + } + + return anchors; +} + +async function buildAnchorMap(files) { + for (const filePath of files) { + const content = await readFileWithCache(filePath); + const anchors = extractAnchorsFromContent(content); + if (anchors.size > 0) { + anchorMap.set(filePath, anchors); + } + } +} + +function extractLinksFromContent(content) { + const linkPattern = /\[([^\]]*)\]\(([^)]+)\)/g; + const links = []; + let match; + + while ((match = linkPattern.exec(content)) !== null) { + const [, linkText, linkUrl] = match; + if (linkUrl.startsWith('/') && !linkUrl.startsWith('//')) { + const lines = content.substring(0, match.index).split('\n'); + const line = lines.length; + const lastLineStart = + lines.length > 1 ? content.lastIndexOf('\n', match.index - 1) + 1 : 0; + const column = match.index - lastLineStart + 1; + + links.push({ + text: linkText, + url: linkUrl, + line, + column, + }); + } + } + + return links; +} + +async function findTargetFile(urlPath) { + // Check if it's an image or static asset that might be in the public directory + const imageExtensions = [ + '.png', + '.jpg', + '.jpeg', + '.gif', + '.svg', + '.ico', + '.webp', + ]; + const hasImageExtension = imageExtensions.some((ext) => + urlPath.toLowerCase().endsWith(ext) + ); + + if (hasImageExtension || urlPath.includes('.')) { + // Check in public directory (with and without leading slash) + const publicPaths = [ + path.join(PUBLIC_DIR, urlPath), + path.join(PUBLIC_DIR, urlPath.substring(1)), + ]; + + for (const p of publicPaths) { + if (await fileExists(p)) { + return p; + } + } + } + + const possiblePaths = [ + path.join(CONTENT_DIR, urlPath + '.md'), + path.join(CONTENT_DIR, urlPath + '.mdx'), + path.join(CONTENT_DIR, urlPath, 'index.md'), + path.join(CONTENT_DIR, urlPath, 'index.mdx'), + // Without leading slash + path.join(CONTENT_DIR, urlPath.substring(1) + '.md'), + path.join(CONTENT_DIR, urlPath.substring(1) + '.mdx'), + path.join(CONTENT_DIR, urlPath.substring(1), 'index.md'), + path.join(CONTENT_DIR, urlPath.substring(1), 'index.mdx'), + ]; + + for (const p of possiblePaths) { + if (await fileExists(p)) { + return p; + } + } + return null; +} + +async function validateLink(link) { + const urlAnchorPattern = /#([a-zA-Z0-9-_]+)$/; + const anchorMatch = link.url.match(urlAnchorPattern); + const urlWithoutAnchor = link.url.replace(urlAnchorPattern, ''); + + if (urlWithoutAnchor === '/') { + return {valid: true}; + } + + // Check if it's an error code link + const errorCodeMatch = urlWithoutAnchor.match(/^\/errors\/(\d+)$/); + if (errorCodeMatch) { + const code = errorCodeMatch[1]; + if (!errorCodes.has(code)) { + return { + valid: false, + reason: `Error code ${code} not found in React error codes`, + }; + } + return {valid: true}; + } + + // Check if it's a contributor link on the team or acknowledgements page + if ( + anchorMatch && + (urlWithoutAnchor === '/community/team' || + urlWithoutAnchor === '/community/acknowledgements') + ) { + const anchorId = anchorMatch[1].toLowerCase(); + if (contributorMap.has(anchorId)) { + const correctUrl = contributorMap.get(anchorId); + if (correctUrl !== link.url) { + return { + valid: false, + reason: `Contributor link should be updated to: ${correctUrl}`, + }; + } + return {valid: true}; + } else { + return { + valid: false, + reason: `Contributor link not found`, + }; + } + } + + const targetFile = await findTargetFile(urlWithoutAnchor); + + if (!targetFile) { + return { + valid: false, + reason: `Target file not found for: ${urlWithoutAnchor}`, + }; + } + + // Only check anchors for content files, not static assets + if (anchorMatch && targetFile.startsWith(CONTENT_DIR)) { + const anchorId = anchorMatch[1].toLowerCase(); + + // TODO handle more special cases. These are usually from custom MDX components that include + // a Heading from src/components/MDX/Heading.tsx which automatically injects an anchor tag. + switch (anchorId) { + case 'challenges': + case 'recap': { + return {valid: true}; + } + } + + const fileAnchors = anchorMap.get(targetFile); + + if (!fileAnchors || !fileAnchors.has(anchorId)) { + return { + valid: false, + reason: `Anchor #${anchorMatch[1]} not found in ${path.relative( + CONTENT_DIR, + targetFile + )}`, + }; + } + } + + return {valid: true}; +} + +async function processFile(filePath) { + const content = await readFileWithCache(filePath); + const links = extractLinksFromContent(content); + const deadLinks = []; + + for (const link of links) { + const result = await validateLink(link); + if (!result.valid) { + deadLinks.push({ + file: path.relative(process.cwd(), filePath), + line: link.line, + column: link.column, + text: link.text, + url: link.url, + reason: result.reason, + }); + } + } + + return {deadLinks, totalLinks: links.length}; +} + +async function buildContributorMap() { + const teamFile = path.join(CONTENT_DIR, 'community/team.md'); + const teamContent = await readFileWithCache(teamFile); + + const teamMemberPattern = /]*permalink=["']([^"']+)["']/g; + let match; + + while ((match = teamMemberPattern.exec(teamContent)) !== null) { + const permalink = match[1]; + contributorMap.set(permalink, `/community/team#${permalink}`); + } + + const ackFile = path.join(CONTENT_DIR, 'community/acknowledgements.md'); + const ackContent = await readFileWithCache(ackFile); + const contributorPattern = /\*\s*\[([^\]]+)\]\(([^)]+)\)/g; + + while ((match = contributorPattern.exec(ackContent)) !== null) { + const name = match[1]; + const url = match[2]; + const hyphenatedName = name.toLowerCase().replace(/\s+/g, '-'); + if (!contributorMap.has(hyphenatedName)) { + contributorMap.set(hyphenatedName, url); + } + } +} + +async function fetchErrorCodes() { + try { + const response = await fetch( + 'https://raw.githubusercontent.com/facebook/react/main/scripts/error-codes/codes.json' + ); + if (!response.ok) { + throw new Error(`Failed to fetch error codes: ${response.status}`); + } + const codes = await response.json(); + errorCodes = new Set(Object.keys(codes)); + console.log(chalk.gray(`Fetched ${errorCodes.size} React error codes\n`)); + } catch (error) { + throw new Error(`Failed to fetch error codes: ${error.message}`); + } +} + +async function main() { + const files = getMarkdownFiles(); + console.log(chalk.gray(`Checking ${files.length} markdown files...`)); + + await fetchErrorCodes(); + await buildContributorMap(); + await buildAnchorMap(files); + + const filePromises = files.map((filePath) => processFile(filePath)); + const results = await Promise.all(filePromises); + const deadLinks = results.flatMap((r) => r.deadLinks); + const totalLinks = results.reduce((sum, r) => sum + r.totalLinks, 0); + + if (deadLinks.length > 0) { + for (const link of deadLinks) { + console.log(chalk.yellow(`${link.file}:${link.line}:${link.column}`)); + console.log(chalk.reset(` Link text: ${link.text}`)); + console.log(chalk.reset(` URL: ${link.url}`)); + console.log(` ${chalk.red('✗')} ${chalk.red(link.reason)}\n`); + } + + console.log( + chalk.red( + `\nFound ${deadLinks.length} dead link${ + deadLinks.length > 1 ? 's' : '' + } out of ${totalLinks} total links\n` + ) + ); + process.exit(1); + } + + console.log(chalk.green(`\n✓ All ${totalLinks} links are valid!\n`)); + process.exit(0); +} + +main().catch((error) => { + console.log(chalk.red(`Error: ${error.message}`)); + process.exit(1); +}); diff --git a/yarn.lock b/yarn.lock index e866a206b..e5eecaac2 100644 --- a/yarn.lock +++ b/yarn.lock @@ -2443,6 +2443,14 @@ ccount@^2.0.0: resolved "https://registry.npmjs.org/ccount/-/ccount-2.0.1.tgz" integrity sha512-eyrF0jiFpY+3drT6383f1qhkbGsLSifNAjA61IUjZjmLCWjItY6LB9ft9YhoDgwfmclB2zhu51Lc7+95b8NRAg== +chalk@4.1.2, chalk@^4.0.0, chalk@^4.1.0: + version "4.1.2" + resolved "https://registry.yarnpkg.com/chalk/-/chalk-4.1.2.tgz#aac4e2b7734a740867aeb16bf02aad556a1e7a01" + integrity sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA== + dependencies: + ansi-styles "^4.1.0" + supports-color "^7.1.0" + chalk@^2.0.0, chalk@^2.4.1: version "2.4.2" resolved "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz" @@ -2452,14 +2460,6 @@ chalk@^2.0.0, chalk@^2.4.1: escape-string-regexp "^1.0.5" supports-color "^5.3.0" -chalk@^4.0.0, chalk@^4.1.0: - version "4.1.2" - resolved "https://registry.yarnpkg.com/chalk/-/chalk-4.1.2.tgz#aac4e2b7734a740867aeb16bf02aad556a1e7a01" - integrity sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA== - dependencies: - ansi-styles "^4.1.0" - supports-color "^7.1.0" - character-entities-html4@^1.0.0: version "1.1.4" resolved "https://registry.npmjs.org/character-entities-html4/-/character-entities-html4-1.1.4.tgz" From d52b3ec734077fd56f012fc2b30a67928d14cc73 Mon Sep 17 00:00:00 2001 From: lauren Date: Fri, 18 Jul 2025 17:19:53 -0400 Subject: [PATCH 23/23] Fix deadlinks (#7880) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * [be] Add deadlinks script While rewriting the compiler docs I happened to notice some deadlinks. This PR adds a new `yarn deadlinks` script to identify all deadlinks. I decided to make this a script for now for simplicity but in the future could be ported to an ESlint rule. The script handles: - [x] checks images correctly (images are stored in /public but links can omit the /public) - [x] looks up React error codes for dynamic error pages - [x] lints links to contributors and uses URL from acknowledgements page if the member is no longer active on the core team - [x] special injected anchor tags like #recap and #challenges Example: ``` yarn run v1.22.22 $ node scripts/deadLinkChecker.js Checking 177 markdown files... Fetched 552 React error codes src/content/learn/add-react-to-an-existing-project.md:23:58 Link text: React-based frameworks URL: /learn/start-a-new-react-project ✗ Target file not found for: /learn/start-a-new-react-project src/content/learn/add-react-to-an-existing-project.md:27:45 Link text: benefit from the best practices URL: /learn/start-a-new-react-project#can-i-use-react-without-a-framework ✗ Target file not found for: /learn/start-a-new-react-project src/content/learn/add-react-to-an-existing-project.md:152:269 Link text: a React framework URL: /learn/start-a-new-react-project ✗ Target file not found for: /learn/start-a-new-react-project src/content/learn/synchronizing-with-effects.md:735:18 Link text: framework URL: /learn/start-a-new-react-project#production-grade-react-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/learn/typescript.md:16:3 Link text: Common types from `@types/react` URL: /learn/typescript/#useful-types ✗ Target file not found for: /learn/typescript/ src/content/learn/typescript.md:17:3 Link text: Further learning locations URL: /learn/typescript/#further-learning ✗ Target file not found for: /learn/typescript/ src/content/learn/typescript.md:23:5 Link text: production-grade React frameworks URL: /learn/start-a-new-react-project#production-grade-react-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/learn/you-might-not-need-an-effect.md:29:399 Link text: frameworks URL: /learn/start-a-new-react-project#production-grade-react-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/learn/you-might-not-need-an-effect.md:754:106 Link text: frameworks URL: /learn/start-a-new-react-project#production-grade-react-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/learn/your-first-component.md:218:1 Link text: React-based frameworks URL: /learn/start-a-new-react-project ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/react/ViewTransition.md:146:248 Link text: reveal content URL: /link-to-suspense-below ✗ Target file not found for: /link-to-suspense-below src/content/reference/react/captureOwnerStack.md:60:94 Link text: `errorInfo.componentStack` in `onUncaughtError` URL: /reference/react-dom/client/hydrateRoot#show-a-dialog-for-uncaught-errors ✗ Anchor #show-a-dialog-for-uncaught-errors not found in reference/react-dom/client/hydrateRoot.md src/content/reference/react/forwardRef.md:9:65 Link text: here URL: /blog/2024/04/25/react-19#ref-as-a-prop ✗ Target file not found for: /blog/2024/04/25/react-19 src/content/reference/react/use.md:315:24 Link text: Server Component URL: /reference/react/components#server-components ✗ Anchor #server-components not found in reference/react/components.md src/content/reference/react/useEffect.md:899:67 Link text: if you use a framework, URL: /learn/start-a-new-react-project#production-grade-react-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/react/useEffect.md:1051:18 Link text: framework URL: /learn/start-a-new-react-project#production-grade-react-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/react/useEffect.md:1736:92 Link text: framework URL: /learn/start-a-new-react-project#production-grade-react-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/react/useInsertionEffect.md:136:65 Link text: non-blocking update, URL: /reference/react/useTransition#marking-a-state-update-as-a-non-blocking-transition ✗ Anchor #marking-a-state-update-as-a-non-blocking-transition not found in reference/react/useTransition.md src/content/reference/react-dom/createPortal.md:53:76 Link text: key. URL: /learn/rendering-lists/#keeping-list-items-in-order-with-key ✗ Target file not found for: /learn/rendering-lists/ src/content/reference/react-dom/index.md:24:1 Link text: React-based frameworks URL: /learn/start-a-new-react-project ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/react-dom/index.md:51:3 Link text: `unmountComponentAtNode` URL: /reference/react-dom/unmountComponentAtNode ✗ Target file not found for: /reference/react-dom/unmountComponentAtNode src/content/reference/react-dom/preinit.md:7:1 Link text: React-based frameworks URL: /learn/start-a-new-react-project ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/react-dom/preinitModule.md:7:1 Link text: React-based frameworks URL: /learn/start-a-new-react-project ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/react-dom/preload.md:7:1 Link text: React-based frameworks URL: /learn/start-a-new-react-project ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/react-dom/preloadModule.md:7:1 Link text: React-based frameworks URL: /learn/start-a-new-react-project ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/rsc/directives.md:13:36 Link text: bundlers compatible with React Server Components URL: /learn/start-a-new-react-project#full-stack-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/rsc/server-components.md:7:34 Link text: React Server Components URL: /learn/start-a-new-react-project#full-stack-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/rsc/server-functions.md:198:28 Link text: `useActionState` URL: /reference/react-dom/hooks/useFormState ✗ Target file not found for: /reference/react-dom/hooks/useFormState src/content/reference/rsc/server-functions.md:222:28 Link text: `useActionState` URL: /reference/react-dom/hooks/useFormState ✗ Target file not found for: /reference/react-dom/hooks/useFormState src/content/reference/rsc/use-client.md:44:77 Link text: compatible bundlers URL: /learn/start-a-new-react-project#full-stack-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/rsc/use-server.md:98:54 Link text: serializable props URL: /reference/rsc/use-client#passing-props-from-server-to-client-components ✗ Anchor #passing-props-from-server-to-client-components not found in reference/rsc/use-client.md src/content/reference/react-dom/client/createRoot.md:212:278 Link text: using a framework URL: /learn/start-a-new-react-project#production-grade-react-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/react-dom/client/index.md:7:185 Link text: framework URL: /learn/start-a-new-react-project#production-grade-react-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/react-dom/components/common.md:919:89 Link text: check out more examples. URL: /reference/react/useRef#examples-dom ✗ Anchor #examples-dom not found in reference/react/useRef.md src/content/reference/react-dom/components/form.md:39:23 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/form.md:233:63 Link text: reference documentation URL: /reference/react/hooks/useOptimistic ✗ Target file not found for: /reference/react/hooks/useOptimistic src/content/reference/react-dom/components/input.md:33:24 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/link.md:33:23 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/meta.md:33:23 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/option.md:39:25 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/progress.md:33:27 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/script.md:34:25 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/select.md:39:25 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/style.md:33:24 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/textarea.md:33:27 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/components/title.md:33:24 Link text: common element props. URL: /reference/react-dom/components/common#props ✗ Anchor #props not found in reference/react-dom/components/common.md src/content/reference/react-dom/server/index.md:7:182 Link text: framework URL: /learn/start-a-new-react-project#production-grade-react-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/reference/react-dom/static/index.md:7:146 Link text: framework URL: /learn/start-a-new-react-project#production-grade-react-frameworks ✗ Target file not found for: /learn/start-a-new-react-project src/content/blog/2023/03/16/introducing-react-dev.md:45:5 Link text: API Reference URL: /reference ✗ Target file not found for: /reference src/content/blog/2023/03/16/introducing-react-dev.md:610:117 Link text: Alternatives URL: /reference/react-dom/findDOMNode#alternatives ✗ Target file not found for: /reference/react-dom/findDOMNode src/content/blog/2023/03/22/react-labs-what-we-have-been-working-on-march-2023.md:34:40 Link text: Next.js App Router URL: /learn/start-a-new-react-project#nextjs-app-router ✗ Target file not found for: /learn/start-a-new-react-project src/content/blog/2023/03/22/react-labs-what-we-have-been-working-on-march-2023.md:95:605 Link text: Next.js App Router URL: /learn/start-a-new-react-project#nextjs-app-router ✗ Target file not found for: /learn/start-a-new-react-project src/content/blog/2024/02/15/react-labs-what-we-have-been-working-on-february-2024.md:110:3 Link text: Sathya Gunasekaran URL: /community/team#sathya-gunasekaran ✗ Contributor link should be updated to: https://github.com/gsathya src/content/blog/2024/04/25/react-19-upgrade-guide.md:132:20 Link text: improved how errors are handled URL: /blog/2024/04/25/react-19#error-handling ✗ Target file not found for: /blog/2024/04/25/react-19 src/content/blog/2024/04/25/react-19-upgrade-guide.md:502:19 Link text: `ref` as a prop URL: /blog/2024/04/25/react-19#ref-as-a-prop ✗ Target file not found for: /blog/2024/04/25/react-19 src/content/blog/2024/12/05/react-19.md:358:391 Link text: Full-stack React Architecture URL: /learn/start-a-new-react-project#which-features-make-up-the-react-teams-full-stack-architecture-vision ✗ Target file not found for: /learn/start-a-new-react-project src/content/blog/2024/12/05/react-19.md:392:28 Link text: React Server Actions URL: /reference/rsc/server-actions ✗ Target file not found for: /reference/rsc/server-actions src/content/blog/2025/04/23/react-labs-view-transitions-activity-and-more.md:2498:37 Link text: view transition classes URL: /reference/react/ViewTransition#view-transition-classes ✗ Anchor #view-transition-classes not found in reference/react/ViewTransition.md Found 58 dead links out of 1555 total links info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command. ``` * Fix deadlinks Following `yarn deadlinks` as a guide, I fixed the following deadlinks: | File | Link Text | Current URL | Issue Type | Actual Fix Applied | Status | |------|-----------|-------------|------------|-------------------|--------| | `add-react-to-an-existing-project.md:23` | React-based frameworks | `/learn/start-a-new-react-project` | Missing file | `/learn/creating-a-react-app` | ✅ Fixed | | `add-react-to-an-existing-project.md:27` | benefit from the best practices | `/learn/start-a-new-react-project#can-i-use-react-without-a-framework` | Missing file + anchor | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `add-react-to-an-existing-project.md:152` | a React framework | `/learn/start-a-new-react-project` | Missing file | `/learn/creating-a-react-app` | ✅ Fixed | | `synchronizing-with-effects.md:735` | framework | `/learn/start-a-new-react-project#production-grade-react-frameworks` | Missing file + anchor | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `typescript.md:16` | Common types from `@types/react` | `/learn/typescript/#useful-types` | Trailing slash | `/learn/typescript#useful-types` | ✅ Fixed | | `typescript.md:17` | Further learning locations | `/learn/typescript/#further-learning` | Trailing slash | `/learn/typescript#further-learning` | ✅ Fixed | | `typescript.md:23` | production-grade React frameworks | `/learn/start-a-new-react-project#production-grade-react-frameworks` | Missing file + anchor | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `you-might-not-need-an-effect.md:29` | frameworks | `/learn/start-a-new-react-project#production-grade-react-frameworks` | Missing file + anchor | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `you-might-not-need-an-effect.md:754` | frameworks | `/learn/start-a-new-react-project#production-grade-react-frameworks` | Missing file + anchor | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `your-first-component.md:218` | React-based frameworks | `/learn/start-a-new-react-project` | Missing file | `/learn/creating-a-react-app` | ✅ Fixed | | `ViewTransition.md:146` | reveal content | `/link-to-suspense-below` | Placeholder URL | `/reference/react/Suspense#revealing-content-together-at-once` | ✅ Fixed | | `captureOwnerStack.md:60` | `errorInfo.componentStack` in `onUncaughtError` | `/reference/react-dom/client/hydrateRoot#show-a-dialog-for-uncaught-errors` | Missing anchor | `/reference/react-dom/client/hydrateRoot#error-logging-in-production` | ✅ Fixed | | `forwardRef.md:9` | here | `/blog/2024/04/25/react-19#ref-as-a-prop` | Missing file + anchor | `/blog/2024/12/05/react-19#ref-as-a-prop` | ✅ Fixed | | `use.md:315` | Server Component | `/reference/react/components#server-components` | Missing anchor | `/reference/rsc/server-components` | ✅ Fixed | | `useEffect.md:899` | if you use a framework, | `/learn/start-a-new-react-project#production-grade-react-frameworks` | Missing file + anchor | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `useEffect.md:1051` | framework | `/learn/start-a-new-react-project#production-grade-react-frameworks` | Missing file + anchor | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `useEffect.md:1736` | framework | `/learn/start-a-new-react-project#production-grade-react-frameworks` | Missing file + anchor | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `useInsertionEffect.md:136` | non-blocking update, | `/reference/react/useTransition#marking-a-state-update-as-a-non-blocking-transition` | Wrong anchor | `/reference/react/useTransition#perform-non-blocking-updates-with-actions` | ✅ Fixed | | `createPortal.md:53` | key. | `/learn/rendering-lists/#keeping-list-items-in-order-with-key` | Trailing slash | `/learn/rendering-lists#keeping-list-items-in-order-with-key` | ✅ Fixed | | `react-dom/index.md:24` | React-based frameworks | `/learn/start-a-new-react-project` | Missing file | `/learn/creating-a-react-app` | ✅ Fixed | | `react-dom/index.md:51` | `unmountComponentAtNode` | `/reference/react-dom/unmountComponentAtNode` | Missing file | `https://18.react.dev/reference/react-dom/unmountComponentAtNode` | ✅ Fixed | | `preinit.md:7` | React-based frameworks | `/learn/start-a-new-react-project` | Missing file | `/learn/creating-a-react-app` | ✅ Fixed | | `preinitModule.md:7` | React-based frameworks | `/learn/start-a-new-react-project` | Missing file | `/learn/creating-a-react-app` | ✅ Fixed | | `preload.md:7` | React-based frameworks | `/learn/start-a-new-react-project` | Missing file | `/learn/creating-a-react-app` | ✅ Fixed | | `preloadModule.md:7` | React-based frameworks | `/learn/start-a-new-react-project` | Missing file | `/learn/creating-a-react-app` | ✅ Fixed | | 11 component files | common element props. | `/reference/react-dom/components/common#props` | Wrong anchor | `/reference/react-dom/components/common#common-props` | ✅ Fixed | | `server/index.md:7` | framework | `/learn/start-a-new-react-project#production-grade-react-frameworks` | Missing file + anchor | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `static/index.md:7` | framework | `/learn/start-a-new-react-project#production-grade-react-frameworks` | Missing file + anchor | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `introducing-react-dev.md:45` | API Reference | `/reference` | Missing index | `/reference/react` | ✅ Fixed | | `introducing-react-dev.md:610` | Alternatives | `/reference/react-dom/findDOMNode#alternatives` | Missing file | `https://18.react.dev/reference/react-dom/findDOMNode#alternatives` | ✅ Fixed | | `react-labs-march-2023.md:34` | Next.js App Router | `/learn/start-a-new-react-project#nextjs-app-router` | Missing file + anchor | `/learn/creating-a-react-app#nextjs-app-router` | ✅ Fixed | | `react-labs-march-2023.md:95` | Next.js App Router | `/learn/start-a-new-react-project#nextjs-app-router` | Missing file + anchor | `/learn/creating-a-react-app#nextjs-app-router` | ✅ Fixed | | `react-labs-february-2024.md:110` | Sathya Gunasekaran | `/community/team#sathya-gunasekaran` | Contributor link | `https://github.com/gsathya` | ✅ Fixed | | `react-19-upgrade-guide.md:132` | improved how errors are handled | `/blog/2024/04/25/react-19#error-handling` | Missing file + anchor | `/blog/2024/12/05/react-19#error-handling` | ✅ Fixed | | `react-19-upgrade-guide.md:502` | `ref` as a prop | `/blog/2024/04/25/react-19#ref-as-a-prop` | Missing file + anchor | `/blog/2024/12/05/react-19#ref-as-a-prop` | ✅ Fixed | | `react-19.md:358` | Full-stack React Architecture | `/learn/start-a-new-react-project#which-features-make-up-the-react-teams-full-stack-architecture-vision` | Missing file + anchor | `/learn/creating-a-react-app#which-features-make-up-the-react-teams-full-stack-architecture-vision` | ✅ Fixed | | `react-19.md:392` | React Server Actions | `/reference/rsc/server-actions` | Missing file | `/reference/rsc/server-functions` | ✅ Fixed | | `view-transitions-activity.md:2498` | view transition classes | `/reference/react/ViewTransition#view-transition-classes` | Missing anchor | `/reference/react/ViewTransition#view-transition-class` | ✅ Fixed | | `rsc/directives.md:13` | bundlers compatible with React Server Components | `/learn/start-a-new-react-project#full-stack-frameworks` | Missing file | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `rsc/server-components.md:7` | React Server Components | `/learn/start-a-new-react-project#full-stack-frameworks` | Missing file | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `rsc/use-client.md:44` | compatible bundlers | `/learn/start-a-new-react-project#full-stack-frameworks` | Missing file | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `react-dom/client/createRoot.md:212` | using a framework | `/learn/start-a-new-react-project#production-grade-react-frameworks` | Missing file | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `react-dom/client/index.md:7` | framework | `/learn/start-a-new-react-project#production-grade-react-frameworks` | Missing file | `/learn/creating-a-react-app#full-stack-frameworks` | ✅ Fixed | | `rsc/server-functions.md:198` | `useActionState` | `/reference/react-dom/hooks/useFormState` | Missing file | `/reference/react/useActionState` | ✅ Fixed | | `rsc/server-functions.md:222` | `useActionState` | `/reference/react-dom/hooks/useFormState` | Missing file | `/reference/react/useActionState` | ✅ Fixed | | `rsc/use-server.md:98` | serializable props | `/reference/rsc/use-client#passing-props-from-server-to-client-components` | Missing anchor | `/reference/rsc/use-client#serializable-types` | ✅ Fixed | | `react-dom/components/common.md:919` | check out more examples. | `/reference/react/useRef#examples-dom` | Missing anchor | `/reference/react/useRef#usage` | ✅ Fixed | | `react-dom/components/form.md:233` | reference documentation | `/reference/react/hooks/useOptimistic` | Missing file | `/reference/react/useOptimistic` | ✅ Fixed | ``` $ yarn deadlinks yarn run v1.22.22 $ node scripts/deadLinkChecker.js Checking 177 markdown files... Fetched 552 React error codes ✓ All 1552 links are valid! ✨ Done in 1.07s. ``` --- src/content/blog/2023/03/16/introducing-react-dev.md | 4 ++-- .../react-labs-what-we-have-been-working-on-march-2023.md | 4 ++-- ...react-labs-what-we-have-been-working-on-february-2024.md | 2 +- src/content/blog/2024/04/25/react-19-upgrade-guide.md | 4 ++-- src/content/blog/2024/12/05/react-19.md | 4 ++-- .../04/23/react-labs-view-transitions-activity-and-more.md | 2 +- src/content/learn/add-react-to-an-existing-project.md | 6 +++--- src/content/learn/synchronizing-with-effects.md | 2 +- src/content/learn/typescript.md | 6 +++--- src/content/learn/you-might-not-need-an-effect.md | 4 ++-- src/content/learn/your-first-component.md | 2 +- src/content/reference/react-dom/client/createRoot.md | 2 +- src/content/reference/react-dom/client/index.md | 2 +- src/content/reference/react-dom/components/common.md | 2 +- src/content/reference/react-dom/components/form.md | 4 ++-- src/content/reference/react-dom/components/input.md | 2 +- src/content/reference/react-dom/components/link.md | 2 +- src/content/reference/react-dom/components/meta.md | 2 +- src/content/reference/react-dom/components/option.md | 2 +- src/content/reference/react-dom/components/progress.md | 2 +- src/content/reference/react-dom/components/script.md | 2 +- src/content/reference/react-dom/components/select.md | 2 +- src/content/reference/react-dom/components/style.md | 2 +- src/content/reference/react-dom/components/textarea.md | 2 +- src/content/reference/react-dom/components/title.md | 2 +- src/content/reference/react-dom/createPortal.md | 2 +- src/content/reference/react-dom/index.md | 4 ++-- src/content/reference/react-dom/preinit.md | 2 +- src/content/reference/react-dom/preinitModule.md | 2 +- src/content/reference/react-dom/preload.md | 2 +- src/content/reference/react-dom/preloadModule.md | 2 +- src/content/reference/react-dom/server/index.md | 2 +- src/content/reference/react-dom/static/index.md | 2 +- src/content/reference/react/ViewTransition.md | 2 +- src/content/reference/react/captureOwnerStack.md | 2 +- src/content/reference/react/forwardRef.md | 2 +- src/content/reference/react/use.md | 2 +- src/content/reference/react/useEffect.md | 6 +++--- src/content/reference/react/useInsertionEffect.md | 2 +- src/content/reference/rsc/directives.md | 2 +- src/content/reference/rsc/server-components.md | 2 +- src/content/reference/rsc/server-functions.md | 4 ++-- src/content/reference/rsc/use-client.md | 2 +- src/content/reference/rsc/use-server.md | 2 +- 44 files changed, 58 insertions(+), 58 deletions(-) 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..5437e1882 100644 --- a/src/content/blog/2023/03/16/introducing-react-dev.md +++ b/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)** provides the details and usage examples for every React API. +* **[API Reference](/reference/react)** 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; } -Some API pages also include [Troubleshooting](/reference/react/useEffect#troubleshooting) (for common problems) and [Alternatives](/reference/react-dom/findDOMNode#alternatives) (for deprecated APIs). +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). 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. diff --git a/src/content/blog/2023/03/22/react-labs-what-we-have-been-working-on-march-2023.md b/src/content/blog/2023/03/22/react-labs-what-we-have-been-working-on-march-2023.md index 1bc78149d..df1fd085d 100644 --- a/src/content/blog/2023/03/22/react-labs-what-we-have-been-working-on-march-2023.md +++ b/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/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. +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. 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/start-a-new-react-project#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/creating-a-react-app#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. 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 ffe761624..9ec330e6b 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 @@ -107,7 +107,7 @@ Activity is still under research and our remaining work is to finalize the primi In addition to this update, our team has presented at conferences and made appearances on podcasts to speak more on our work and answer questions. -- [Sathya Gunasekaran](/community/team#sathya-gunasekaran) spoke about the React Compiler at the [React India](https://www.youtube.com/watch?v=kjOacmVsLSE) conference +- [Sathya Gunasekaran](https://github.com/gsathya) spoke about the React Compiler at the [React India](https://www.youtube.com/watch?v=kjOacmVsLSE) conference - [Dan Abramov](/community/team#dan-abramov) gave a talk at [RemixConf](https://www.youtube.com/watch?v=zMf_xeGPn6s) titled “React from Another Dimension” which explores an alternative history of how React Server Components and Actions could have been created 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..2e9131eb3 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 @@ -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/2024/04/25/react-19#error-handling) to reduce duplication by not re-throwing: +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: - **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/2024/04/25/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/2024/12/05/react-19#ref-as-a-prop), so we're deprecating the `element.ref` in place of `element.props.ref`. Accessing `element.ref` will warn: diff --git a/src/content/blog/2024/12/05/react-19.md b/src/content/blog/2024/12/05/react-19.md index 65bf42757..1bbf2389c 100644 --- a/src/content/blog/2024/12/05/react-19.md +++ b/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/start-a-new-react-project#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). @@ -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-actions). +For more, see the docs for [React Server Actions](/reference/rsc/server-functions). ## Improvements in React 19 {/*improvements-in-react-19*/} 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 e4bb25a4a..0f54d02b4 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 @@ -2495,7 +2495,7 @@ For example, we can slow down the `default` cross fade animation: ``` -And define `slow-fade` in CSS using [view transition classes](/reference/react/ViewTransition#view-transition-classes): +And define `slow-fade` in CSS using [view transition classes](/reference/react/ViewTransition#view-transition-class): ```css ::view-transition-old(.slow-fade) { diff --git a/src/content/learn/add-react-to-an-existing-project.md b/src/content/learn/add-react-to-an-existing-project.md index 4684fb5b0..d2d8b1ad9 100644 --- a/src/content/learn/add-react-to-an-existing-project.md +++ b/src/content/learn/add-react-to-an-existing-project.md @@ -20,11 +20,11 @@ Let's say you have an existing web app at `example.com` built with another serve Here's how we recommend to set it up: -1. **Build the React part of your app** using one of the [React-based frameworks](/learn/start-a-new-react-project). +1. **Build the React part of your app** using one of the [React-based frameworks](/learn/creating-a-react-app). 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/start-a-new-react-project#can-i-use-react-without-a-framework) baked into those frameworks. +This ensures the React part of your app can [benefit from the best practices](/learn/creating-a-react-app#full-stack-frameworks) baked into those frameworks. Many React-based frameworks are full-stack and let your React app take advantage of the server. However, you can use the same approach even if you can't or don't want to run JavaScript on the server. In that case, serve the HTML/CSS/JS export ([`next export` output](https://nextjs.org/docs/advanced-features/static-html-export) for Next.js, default for Gatsby) at `/some-app/` instead. @@ -149,7 +149,7 @@ root.render(); Notice how the original HTML content from `index.html` is preserved, but your own `NavigationBar` React component now appears inside the `