diff --git a/public/images/tutorial/react-starter-code-codesandbox.png b/public/images/tutorial/react-starter-code-codesandbox.png old mode 100644 new mode 100755 index d65f161bc..b01e18297 Binary files a/public/images/tutorial/react-starter-code-codesandbox.png and b/public/images/tutorial/react-starter-code-codesandbox.png differ diff --git a/src/components/DocsFooter.tsx b/src/components/DocsFooter.tsx index a2d491077..ffda0f180 100644 --- a/src/components/DocsFooter.tsx +++ b/src/components/DocsFooter.tsx @@ -80,7 +80,11 @@ function FooterLink({ />
+<<<<<<< HEAD {type === 'Previous' ? 'Попередня' : 'Наступна'} +======= + {type === 'Previous' ? 'Previous' : 'Next'} +>>>>>>> a5181c291f01896735b65772f156cfde34df20ee {title} diff --git a/src/components/Icon/IconArrowSmall.tsx b/src/components/Icon/IconArrowSmall.tsx index 4a3d3ad02..a70717c9d 100644 --- a/src/components/Icon/IconArrowSmall.tsx +++ b/src/components/Icon/IconArrowSmall.tsx @@ -19,6 +19,7 @@ export const IconArrowSmall = memo< const classes = cn(className, { 'rotate-180': displayDirection === 'left', 'rotate-180 rtl:rotate-0': displayDirection === 'start', + 'rtl:rotate-180': displayDirection === 'end', 'rotate-90': displayDirection === 'down', }); return ( diff --git a/src/components/Icon/IconExperimental.tsx b/src/components/Icon/IconExperimental.tsx index 0bba612eb..c0f69e3f9 100644 --- a/src/components/Icon/IconExperimental.tsx +++ b/src/components/Icon/IconExperimental.tsx @@ -6,7 +6,7 @@ import {memo} from 'react'; export const IconExperimental = memo< JSX.IntrinsicElements['svg'] & {title?: string; size?: 's' | 'md'} ->(function IconCanary( +>(function IconExperimental( {className, title, size} = { className: undefined, title: undefined, diff --git a/src/components/MDX/Challenges/Navigation.tsx b/src/components/MDX/Challenges/Navigation.tsx index 48441292e..35093aaca 100644 --- a/src/components/MDX/Challenges/Navigation.tsx +++ b/src/components/MDX/Challenges/Navigation.tsx @@ -108,7 +108,7 @@ export function Navigation({ onClick={handleScrollLeft} aria-label="Прогорнути вліво" className={cn( - 'bg-secondary-button dark:bg-secondary-button-dark h-8 px-2 rounded-l border-gray-20 border-r rtl:rotate-180', + 'bg-secondary-button dark:bg-secondary-button-dark h-8 px-2 rounded-l rtl:rounded-r rtl:rounded-l-none border-gray-20 border-r rtl:border-l rtl:border-r-0', { 'text-primary dark:text-primary-dark': canScrollLeft, 'text-gray-30': !canScrollLeft, @@ -120,7 +120,7 @@ export function Navigation({ onClick={handleScrollRight} aria-label="Прогорнути вправо" className={cn( - 'bg-secondary-button dark:bg-secondary-button-dark h-8 px-2 rounded-e rtl:rotate-180', + 'bg-secondary-button dark:bg-secondary-button-dark h-8 px-2 rounded-e', { 'text-primary dark:text-primary-dark': canScrollRight, 'text-gray-30': !canScrollRight, diff --git a/src/components/MDX/MDXComponents.tsx b/src/components/MDX/MDXComponents.tsx index b8b33b204..5de4988fa 100644 --- a/src/components/MDX/MDXComponents.tsx +++ b/src/components/MDX/MDXComponents.tsx @@ -37,6 +37,7 @@ import {finishedTranslations} from 'utils/finishedTranslations'; import ErrorDecoder from './ErrorDecoder'; import {IconCanary} from '../Icon/IconCanary'; +import {IconExperimental} from 'components/Icon/IconExperimental'; function CodeStep({children, step}: {children: any; step: number}) { return ( @@ -130,7 +131,7 @@ const ExperimentalBadge = ({title}: {title: string}) => ( className={ 'text-base font-display px-1 py-0.5 font-bold bg-gray-10 dark:bg-gray-60 text-gray-60 dark:text-gray-10 rounded' }> - diff --git a/src/components/MDX/Sandpack/ClearButton.tsx b/src/components/MDX/Sandpack/ClearButton.tsx new file mode 100644 index 000000000..868f9fb66 --- /dev/null +++ b/src/components/MDX/Sandpack/ClearButton.tsx @@ -0,0 +1,22 @@ +/* + * Copyright (c) Facebook, Inc. and its affiliates. + */ + +import * as React from 'react'; +import {IconClose} from '../../Icon/IconClose'; +export interface ClearButtonProps { + onClear: () => void; +} + +export function ClearButton({onClear}: ClearButtonProps) { + return ( + + ); +} diff --git a/src/components/MDX/Sandpack/NavigationBar.tsx b/src/components/MDX/Sandpack/NavigationBar.tsx index bf2c3186c..d115868dd 100644 --- a/src/components/MDX/Sandpack/NavigationBar.tsx +++ b/src/components/MDX/Sandpack/NavigationBar.tsx @@ -17,7 +17,8 @@ import { useSandpackNavigation, } from '@codesandbox/sandpack-react/unstyled'; import {OpenInCodeSandboxButton} from './OpenInCodeSandboxButton'; -import {ResetButton} from './ResetButton'; +import {ReloadButton} from './ReloadButton'; +import {ClearButton} from './ClearButton'; import {DownloadButton} from './DownloadButton'; import {IconChevron} from '../../Icon/IconChevron'; import {Listbox} from '@headlessui/react'; @@ -95,7 +96,7 @@ export function NavigationBar({providedFiles}: {providedFiles: Array}) { // Note: in a real useEvent, onContainerResize would be omitted. }, [isMultiFile, onContainerResize]); - const handleReset = () => { + const handleClear = () => { /** * resetAllFiles must come first, otherwise * the previous content will appear for a second @@ -103,13 +104,13 @@ export function NavigationBar({providedFiles}: {providedFiles: Array}) { * * Plus, it should only prompt if there's any file changes */ - if ( - sandpack.editorState === 'dirty' && - confirm('Reset all your edits too?') - ) { + if (sandpack.editorState === 'dirty' && confirm('Clear all your edits?')) { sandpack.resetAllFiles(); } + refresh(); + }; + const handleReload = () => { refresh(); }; @@ -188,7 +189,8 @@ export function NavigationBar({providedFiles}: {providedFiles: Array}) { className="px-3 flex items-center justify-end text-start" translate="yes"> - + + {activeFile.endsWith('.tsx') && ( void; +export interface ReloadButtonProps { + onReload: () => void; } -export function ResetButton({onReset}: ResetButtonProps) { +export function ReloadButton({onReload}: ReloadButtonProps) { return ( ); } diff --git a/src/content/blog/2025/04/21/react-compiler-rc.md b/src/content/blog/2025/04/21/react-compiler-rc.md index ecbbb8747..2ebbf3bae 100644 --- a/src/content/blog/2025/04/21/react-compiler-rc.md +++ b/src/content/blog/2025/04/21/react-compiler-rc.md @@ -57,23 +57,23 @@ During the RC period, we encourage all React users to try the compiler and provi As noted in the Beta announcement, React Compiler is compatible with React 17 and up. If you are not yet on React 19, you can use React Compiler by specifying a minimum target in your compiler config, and adding `react-compiler-runtime` as a dependency. You can find docs on this [here](https://react.dev/learn/react-compiler#using-react-compiler-with-react-17-or-18). ## Migrating from eslint-plugin-react-compiler to eslint-plugin-react-hooks {/*migrating-from-eslint-plugin-react-compiler-to-eslint-plugin-react-hooks*/} -If you have already installed eslint-plugin-react-compiler, you can now remove it and use `eslint-plugin-react-hooks@6.0.0-rc.1`. Many thanks to [@michaelfaith](https://bsky.app/profile/michael.faith) for contributing to this improvement! +If you have already installed eslint-plugin-react-compiler, you can now remove it and use `eslint-plugin-react-hooks@rc`. Many thanks to [@michaelfaith](https://bsky.app/profile/michael.faith) for contributing to this improvement! To install: npm -{`npm install --save-dev eslint-plugin-react-hooks@6.0.0-rc.1`} +{`npm install --save-dev eslint-plugin-react-hooks@rc`} pnpm -{`pnpm add --save-dev eslint-plugin-react-hooks@6.0.0-rc.1`} +{`pnpm add --save-dev eslint-plugin-react-hooks@rc`} yarn -{`yarn add --dev eslint-plugin-react-hooks@6.0.0-rc.1`} +{`yarn add --dev eslint-plugin-react-hooks@rc`} ```js 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 0f54d02b4..c7f740091 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 @@ -2521,7 +2521,7 @@ export default function App() { const { url } = useRouter(); // Define a default animation of .slow-fade. - // See animations.css for the animation definiton. + // See animations.css for the animation definition. return ( {url === '/' ? :
} @@ -11465,6 +11465,14 @@ _For more background on how we built View Transitions, see: [#31975](https://git ## Activity {/*activity*/} + + +**`` is now available in React’s Canary channel.** + +[Learn more about React’s release channels here.](/community/versioning-policy#all-release-channels) + + + In [past](/blog/2022/06/15/react-labs-what-we-have-been-working-on-june-2022#offscreen) [updates](/blog/2024/02/15/react-labs-what-we-have-been-working-on-february-2024#offscreen-renamed-to-activity), we shared that we were researching an API to allow components to be visually hidden and deprioritized, preserving UI state with reduced performance costs relative to unmounting or hiding with CSS. We're now ready to share the API and how it works, so you can start testing it in experimental React versions. diff --git a/src/content/community/conferences.md b/src/content/community/conferences.md index a97f3d5b4..9354dc9c3 100644 --- a/src/content/community/conferences.md +++ b/src/content/community/conferences.md @@ -10,36 +10,6 @@ Do you know of a local React.js conference? Add it here! (Please keep the list c ## Upcoming Conferences {/*upcoming-conferences*/} -### CityJS London 2025 {/*cityjs-london*/} -April 23 - 25, 2025. In-person in London, UK - -[Website](https://london.cityjsconf.org/) - [Twitter](https://x.com/cityjsconf) - [Bluesky](https://bsky.app/profile/cityjsconf.bsky.social) - -### App.js Conf 2025 {/*appjs-conf-2025*/} -May 28 - 30, 2025. In-person in Kraków, Poland + remote - -[Website](https://appjs.co) - [Twitter](https://twitter.com/appjsconf) - -### CityJS Athens 2025 {/*cityjs-athens*/} -May 27 - 31, 2025. In-person in Athens, Greece - -[Website](https://athens.cityjsconf.org/) - [Twitter](https://x.com/cityjsconf) - [Bluesky](https://bsky.app/profile/cityjsconf.bsky.social) - -### React Norway 2025 {/*react-norway-2025*/} -June 13, 2025. In-person in Oslo, Norway + remote (virtual event) - -[Website](https://reactnorway.com/) - [Twitter](https://x.com/ReactNorway) - -### React Summit 2025 {/*react-summit-2025*/} -June 13 - 17, 2025. In-person in Amsterdam, Netherlands + remote (hybrid event) - -[Website](https://reactsummit.com/) - [Twitter](https://x.com/reactsummit) - -### React Nexus 2025 {/*react-nexus-2025*/} -July 03 - 05, 2025. In-person in Bangalore, India - -[Website](https://reactnexus.com/) - [Twitter](https://x.com/ReactNexus) - [Bluesky](https://bsky.app/profile/reactnexus.com) - [Linkedin](https://www.linkedin.com/company/react-nexus) - [YouTube](https://www.youtube.com/reactify_in) - ### React Universe Conf 2025 {/*react-universe-conf-2025*/} September 2-4, 2025. Wrocław, Poland. @@ -50,6 +20,11 @@ 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) +### RenderCon Kenya 2025 {/*rendercon-kenya-2025*/} +October 04, 2025. Nairobi, Kenya + +[Website](https://rendercon.org/) - [Twitter](https://twitter.com/renderconke) - [LinkedIn](https://www.linkedin.com/company/renderconke/) - [YouTube](https://www.youtube.com/channel/UC0bCcG8gHUL4njDOpQGcMIA) + ### React Conf 2025 {/*react-conf-2025*/} October 7-8, 2025. Henderson, Nevada, USA and free livestream @@ -60,6 +35,12 @@ October 31 - November 01, 2025. In-person in Goa, India (hybrid event) + Oct 15 [Website](https://www.reactindia.io) - [Twitter](https://twitter.com/react_india) - [Facebook](https://www.facebook.com/ReactJSIndia) - [Youtube](https://www.youtube.com/channel/UCaFbHCBkPvVv1bWs_jwYt3w) + +### CityJS New Delhi 2025 {/*cityjs-newdelhi*/} +November 6-7, 2025. In-person in New Delhi, India + +[Website](https://india.cityjsconf.org/) - [Twitter](https://x.com/cityjsconf) - [Bluesky](https://bsky.app/profile/cityjsconf.bsky.social) + ### React Summit US 2025 {/*react-summit-us-2025*/} November 18 - 21, 2025. In-person in New York, USA + remote (hybrid event) @@ -70,13 +51,49 @@ November 28 & December 1, 2025. In-person in London, UK + online (hybrid event) [Website](https://reactadvanced.com/) - [Twitter](https://x.com/reactadvanced) +### React Paris 2026 {/*react-paris-2026*/} +March 26 - 27, 2026. In-person in Paris, France (hybrid event) + +[Website](https://react.paris/) - [Twitter](https://x.com/BeJS_) + ## Past Conferences {/*past-conferences*/} + +### React Nexus 2025 {/*react-nexus-2025*/} +July 03 - 05, 2025. In-person in Bangalore, India + +[Website](https://reactnexus.com/) - [Twitter](https://x.com/ReactNexus) - [Bluesky](https://bsky.app/profile/reactnexus.com) - [Linkedin](https://www.linkedin.com/company/react-nexus) - [YouTube](https://www.youtube.com/reactify_in) + +### React Summit 2025 {/*react-summit-2025*/} +June 13 - 17, 2025. In-person in Amsterdam, Netherlands + remote (hybrid event) + +[Website](https://reactsummit.com/) - [Twitter](https://x.com/reactsummit) + +### React Norway 2025 {/*react-norway-2025*/} +June 13, 2025. In-person in Oslo, Norway + remote (virtual event) + +[Website](https://reactnorway.com/) - [Twitter](https://x.com/ReactNorway) + +### CityJS Athens 2025 {/*cityjs-athens*/} +May 27 - 31, 2025. In-person in Athens, Greece + +[Website](https://athens.cityjsconf.org/) - [Twitter](https://x.com/cityjsconf) - [Bluesky](https://bsky.app/profile/cityjsconf.bsky.social) + +### App.js Conf 2025 {/*appjs-conf-2025*/} +May 28 - 30, 2025. In-person in Kraków, Poland + remote + +[Website](https://appjs.co) - [Twitter](https://twitter.com/appjsconf) + +### CityJS London 2025 {/*cityjs-london*/} +April 23 - 25, 2025. In-person in London, UK + +[Website](https://london.cityjsconf.org/) - [Twitter](https://x.com/cityjsconf) - [Bluesky](https://bsky.app/profile/cityjsconf.bsky.social) + ### React Paris 2025 {/*react-paris-2025*/} March 20 - 21, 2025. In-person in Paris, France (hybrid event) -[Website](https://react.paris/) - [Twitter](https://x.com/BeJS_) +[Website](https://react.paris/) - [Twitter](https://x.com/BeJS_) - [YouTube](https://www.youtube.com/playlist?list=PL53Z0yyYnpWitP8Zv01TSEQmKLvuRh_Dj) ### React Native Connection 2025 {/*react-native-connection-2025*/} April 3 (Reanimated Training) + April 4 (Conference), 2025. Paris, France. diff --git a/src/content/community/meetups.md b/src/content/community/meetups.md index 479ae50d4..78d48093a 100644 --- a/src/content/community/meetups.md +++ b/src/content/community/meetups.md @@ -58,6 +58,7 @@ Do you have a local React.js meetup? Add it here! (Please keep the list alphabet * [Manchester](https://www.meetup.com/Manchester-React-User-Group/) * [React.JS Girls London](https://www.meetup.com/ReactJS-Girls-London/) * [React Advanced London](https://guild.host/react-advanced-london) +* [React Native Liverpool](https://www.meetup.com/react-native-liverpool/) * [React Native London](https://guild.host/RNLDN) ## Finland {/*finland*/} @@ -137,6 +138,9 @@ Do you have a local React.js meetup? Add it here! (Please keep the list alphabet ## Portugal {/*portugal*/} * [Lisbon](https://www.meetup.com/JavaScript-Lisbon/) +## Scotland (UK) {/*scotland-uk*/} +* [Edinburgh](https://www.meetup.com/react-edinburgh/) + ## Spain {/*spain*/} * [Barcelona](https://www.meetup.com/ReactJS-Barcelona/) diff --git a/src/content/community/videos.md b/src/content/community/videos.md index b1e0bea21..529bc4408 100644 --- a/src/content/community/videos.md +++ b/src/content/community/videos.md @@ -8,6 +8,75 @@ Videos dedicated to the discussion of React and the React ecosystem. +## React Conf 2024 {/*react-conf-2024*/} + +At React Conf 2024, Meta CTO [Andrew "Boz" Bosworth](https://www.threads.net/@boztank) shared a welcome message to kick off the conference: + + + +### React 19 Keynote {/*react-19-keynote*/} + +In the Day 1 keynote, we shared vision for React starting with React 19 and the React Compiler. Watch the full keynote from [Joe Savona](https://twitter.com/en_JS), [Lauren Tan](https://twitter.com/potetotes), [Andrew Clark](https://twitter.com/acdlite), [Josh Story](https://twitter.com/joshcstory), [Sathya Gunasekaran](https://twitter.com/_gsathya), and [Mofei Zhang](https://twitter.com/zmofei): + + + + +### React Unpacked: A Roadmap to React 19 {/*react-unpacked-a-roadmap-to-react-19*/} + +React 19 introduced new features including Actions, `use()`, `useOptimistic` and more. For a deep dive on using new features in React 19, see [Sam Selikoff's](https://twitter.com/samselikoff) talk: + + + +### What's New in React 19 {/*whats-new-in-react-19*/} + +[Lydia Hallie](https://twitter.com/lydiahallie) gave a visual deep dive of React 19's new features: + + + +### React 19 Deep Dive: Coordinating HTML {/*react-19-deep-dive-coordinating-html*/} + +[Josh Story](https://twitter.com/joshcstory) provided a deep dive on the document and resource streaming APIs in React 19: + + + +### React for Two Computers {/*react-for-two-computers*/} + +[Dan Abramov](https://bsky.app/profile/danabra.mov) imagined an alternate history where React started server-first: + + + +### Forget About Memo {/*forget-about-memo*/} + +[Lauren Tan](https://twitter.com/potetotes) gave a talk on using the React Compiler in practice: + + + +### React Compiler Deep Dive {/*react-compiler-deep-dive*/} + +[Sathya Gunasekaran](https://twitter.com/_gsathya) and [Mofei Zhang](https://twitter.com/zmofei) provided a deep dive on how the React Compiler works: + + + +### And more... {/*and-more-2024*/} + +**We also heard talks from the community on Server Components:** +* [Enhancing Forms with React Server Components](https://www.youtube.com/embed/0ckOUBiuxVY&t=25280s) by [Aurora Walberg Scharff](https://twitter.com/aurorascharff) +* [And Now You Understand React Server Components](https://www.youtube.com/embed/pOo7x8OiAec) by [Kent C. Dodds](https://twitter.com/kentcdodds) +* [Real-time Server Components](https://www.youtube.com/embed/6sMANTHWtLM) by [Sunil Pai](https://twitter.com/threepointone) + +**Talks from React frameworks using new features:** + +* [Vanilla React](https://www.youtube.com/embed/ZcwA0xt8FlQ) by [Ryan Florence](https://twitter.com/ryanflorence) +* [React Rhythm & Blues](https://www.youtube.com/embed/rs9X5MjvC4s) by [Lee Robinson](https://twitter.com/leeerob) +* [RedwoodJS, now with React Server Components](https://www.youtube.com/embed/sjyY4MTECUU) by [Amy Dutton](https://twitter.com/selfteachme) +* [Introducing Universal React Server Components in Expo Router](https://www.youtube.com/embed/djhEgxQf3Kw) by [Evan Bacon](https://twitter.com/Baconbrix) + +**And Q&As with the React and React Native teams:** +- [React Q&A](https://www.youtube.com/embed/T8TZQ6k4SLE&t=27518s) hosted by [Michael Chan](https://twitter.com/chantastic) +- [React Native Q&A](https://www.youtube.com/embed/0ckOUBiuxVY&t=27935s) hosted by [Jamon Holmgren](https://twitter.com/jamonholmgren) + +You can watch all of the talks at React Conf 2024 at [conf2024.react.dev](https://conf2024.react.dev/talks). + ## React Conf 2021 {/*react-conf-2021*/} ### React 18 Keynote {/*react-18-keynote*/} @@ -16,13 +85,13 @@ In the keynote, we shared our vision for the future of React starting with React Watch the full keynote from [Andrew Clark](https://twitter.com/acdlite), [Juan Tejada](https://twitter.com/_jstejada), [Lauren Tan](https://twitter.com/potetotes), and [Rick Hanlon](https://twitter.com/rickhanlonii) here: - + ### React 18 for Application Developers {/*react-18-for-application-developers*/} For a demo of upgrading to React 18, see [Shruti Kapoor](https://twitter.com/shrutikapoor08)’s talk here: - + ### Streaming Server Rendering with Suspense {/*streaming-server-rendering-with-suspense*/} @@ -32,7 +101,7 @@ Streaming server rendering lets you generate HTML from React components on the s For a deep dive, see [Shaundai Person](https://twitter.com/shaundai)’s talk here: - + ### The first React working group {/*the-first-react-working-group*/} @@ -40,7 +109,7 @@ For React 18, we created our first Working Group to collaborate with a panel of For an overview of this work, see [Aakansha' Doshi](https://twitter.com/aakansha1216)'s talk: - + ### React Developer Tooling {/*react-developer-tooling*/} @@ -48,19 +117,19 @@ To support the new features in this release, we also announced the newly formed For more information and a demo of new DevTools features, see [Brian Vaughn](https://twitter.com/brian_d_vaughn)’s talk: - + ### React without memo {/*react-without-memo*/} Looking further into the future, [Xuan Huang (黄玄)](https://twitter.com/Huxpro) shared an update from our React Labs research into an auto-memoizing compiler. Check out this talk for more information and a demo of the compiler prototype: - + ### React docs keynote {/*react-docs-keynote*/} [Rachel Nabors](https://twitter.com/rachelnabors) kicked off a section of talks about learning and designing with React with a keynote about our investment in React's new docs ([now shipped as react.dev](/blog/2023/03/16/introducing-react-dev)): - + ### And more... {/*and-more*/} diff --git a/src/content/learn/build-a-react-app-from-scratch.md b/src/content/learn/build-a-react-app-from-scratch.md index b840e06d4..bfb88a9e0 100644 --- a/src/content/learn/build-a-react-app-from-scratch.md +++ b/src/content/learn/build-a-react-app-from-scratch.md @@ -122,7 +122,11 @@ Rsbuild відразу підтримує такі функції React, як ш ### Покращення продуктивності застосунку {/*improving-application-performance*/} +<<<<<<< HEAD Оскільки вибраний вами інструмент збирання підтримує лише односторінкові застосунки (SPA), вам треба самостійно реалізувати інші [патерни рендерингу](https://www.patterns.dev/vanilla/rendering-patterns), як-от рендеринг із боку сервера (SSR), генерація статичного сайту (SSG) та/або серверні компоненти React (RSC). Хоч спочатку вони рідко потрібні, згодом SSR, SSG або RSC можуть оптимізувати деякі маршрути вашого застосунку. +======= +Since the build tool you select only supports single page apps (SPAs), you'll need to implement other [rendering patterns](https://www.patterns.dev/vanilla/rendering-patterns) like server-side rendering (SSR), static site generation (SSG), and/or React Server Components (RSC). Even if you don't need these features at first, in the future there may be some routes that would benefit SSR, SSG or RSC. +>>>>>>> a5181c291f01896735b65772f156cfde34df20ee * **Односторінкові застосунки (SPA)** завантажують одну HTML-сторінку та динамічно оновлюють її, коли користувач взаємодіє із застосунком. SPA є швидкими та чуйними, але часто повільніші під час початкового завантаження. SPA є стандартною архітектурою для більшості інструментів збирання. diff --git a/src/content/learn/manipulating-the-dom-with-refs.md b/src/content/learn/manipulating-the-dom-with-refs.md index 2053f936b..2d1ee8685 100644 --- a/src/content/learn/manipulating-the-dom-with-refs.md +++ b/src/content/learn/manipulating-the-dom-with-refs.md @@ -211,7 +211,7 @@ This is because **Hooks must only be called at the top-level of your component.* One possible way around this is to get a single ref to their parent element, and then use DOM manipulation methods like [`querySelectorAll`](https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelectorAll) to "find" the individual child nodes from it. However, this is brittle and can break if your DOM structure changes. -Another solution is to **pass a function to the `ref` attribute.** This is called a [`ref` callback.](/reference/react-dom/components/common#ref-callback) React will call your ref callback with the DOM node when it's time to set the ref, and with `null` when it's time to clear it. This lets you maintain your own array or a [Map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map), and access any ref by its index or some kind of ID. +Another solution is to **pass a function to the `ref` attribute.** This is called a [`ref` callback.](/reference/react-dom/components/common#ref-callback) React will call your ref callback with the DOM node when it's time to set the ref, and call the cleanup function returned from the callback when it's time to clear it. This lets you maintain your own array or a [Map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map), and access any ref by its index or some kind of ID. This example shows how you can use this approach to scroll to an arbitrary node in a long list: @@ -247,13 +247,13 @@ export default function CatFriends() {
    {catList.map((cat) => (
  • { const map = getMap(); map.set(cat, node); @@ -263,7 +263,7 @@ export default function CatFriends() { }; }} > - +
    • ))}
@@ -273,11 +273,22 @@ export default function CatFriends() { } function setupCatList() { - const catList = []; - for (let i = 0; i < 10; i++) { - catList.push("https://loremflickr.com/320/240/cat?lock=" + i); + const catCount = 10; + const catList = new Array(catCount) + for (let i = 0; i < catCount; i++) { + let imageUrl = ''; + if (i < 5) { + imageUrl = "https://placecats.com/neo/320/240"; + } else if (i < 8) { + imageUrl = "https://placecats.com/millie/320/240"; + } else { + imageUrl = "https://placecats.com/bella/320/240"; + } + catList[i] = { + id: i, + imageUrl, + }; } - return catList; } @@ -876,12 +887,30 @@ export default function CatFriends() { ); } -const catList = []; -for (let i = 0; i < 10; i++) { - catList.push({ +const catCount = 10; +const catList = new Array(catCount); +for (let i = 0; i < catCount; i++) { + const bucket = Math.floor(Math.random() * catCount) % 2; + let imageUrl = ''; + switch (bucket) { + case 0: { + imageUrl = "https://placecats.com/neo/250/200"; + break; + } + case 1: { + imageUrl = "https://placecats.com/millie/250/200"; + break; + } + case 2: + default: { + imageUrl = "https://placecats.com/bella/250/200"; + break; + } + } + catList[i] = { id: i, - imageUrl: 'https://loremflickr.com/250/200/cat?lock=' + i - }); + imageUrl, + }; } ``` @@ -961,7 +990,7 @@ export default function CatFriends() { behavior: 'smooth', block: 'nearest', inline: 'center' - }); + }); }}> Next @@ -993,12 +1022,30 @@ export default function CatFriends() { ); } -const catList = []; -for (let i = 0; i < 10; i++) { - catList.push({ +const catCount = 10; +const catList = new Array(catCount); +for (let i = 0; i < catCount; i++) { + const bucket = Math.floor(Math.random() * catCount) % 2; + let imageUrl = ''; + switch (bucket) { + case 0: { + imageUrl = "https://placecats.com/neo/250/200"; + break; + } + case 1: { + imageUrl = "https://placecats.com/millie/250/200"; + break; + } + case 2: + default: { + imageUrl = "https://placecats.com/bella/250/200"; + break; + } + } + catList[i] = { id: i, - imageUrl: 'https://loremflickr.com/250/200/cat?lock=' + i - }); + imageUrl, + }; } ``` diff --git a/src/content/learn/react-compiler/installation.md b/src/content/learn/react-compiler/installation.md index 3606c9c6d..a40b1f5af 100644 --- a/src/content/learn/react-compiler/installation.md +++ b/src/content/learn/react-compiler/installation.md @@ -176,16 +176,7 @@ Install the ESLint plugin: npm install -D eslint-plugin-react-hooks@rc -Then enable the compiler rule in your ESLint configuration: - -```js {3} -// .eslintrc.js -module.exports = { - rules: { - 'react-hooks/react-compiler': 'error', - }, -}; -``` +If you haven't already configured eslint-plugin-react-hooks, follow the [installation instructions in the readme](https://github.com/facebook/react/blob/main/packages/eslint-plugin-react-hooks/README.md#installation). The compiler rule is enabled by default in the latest RC, so no additional configuration is needed. The ESLint rule will: - Identify violations of the [Rules of React](/reference/rules) diff --git a/src/content/learn/react-compiler/introduction.md b/src/content/learn/react-compiler/introduction.md index 440c66ab6..9957b8227 100644 --- a/src/content/learn/react-compiler/introduction.md +++ b/src/content/learn/react-compiler/introduction.md @@ -50,6 +50,21 @@ const ExpensiveComponent = memo(function ExpensiveComponent({ data, onClick }) { }); ``` + + + +This manual memoization has a subtle bug that breaks memoization: + +```js [[2, 1, "() => handleClick(item)"]] + handleClick(item)} /> +``` + +Even though `handleClick` is wrapped in `useCallback`, the arrow function `() => handleClick(item)` creates a new function every time the component renders. This means that `Item` will always receive a new `onClick` prop, breaking memoization. + +React Compiler is able to optimize this correctly with or without the arrow function, ensuring that `Item` only re-renders when `props.onClick` changes. + + + ### After React Compiler {/*after-react-compiler*/} With React Compiler, you write the same code without manual memoization: @@ -74,7 +89,7 @@ function ExpensiveComponent({ data, onClick }) { _[See this example in the React Compiler Playground](https://playground.react.dev/#N4Igzg9grgTgxgUxALhAMygOzgFwJYSYAEAogB4AOCmYeAbggMIQC2Fh1OAFMEQCYBDHAIA0RQowA2eOAGsiAXwCURYAB1iROITA4iFGBERgwCPgBEhAogF4iCStVoMACoeO1MAcy6DhSgG4NDSItHT0ACwFMPkkmaTlbIi48HAQWFRsAPlUQ0PFMKRlZFLSWADo8PkC8hSDMPJgEHFhiLjzQgB4+eiyO-OADIwQTM0thcpYBClL02xz2zXz8zoBJMqJZBABPG2BU9Mq+BQKiuT2uTJyomLizkoOMk4B6PqX8pSUFfs7nnro3qEapgFCAFEA)_ -React Compiler automatically applies the equivalent optimizations, ensuring your app only re-renders when necessary. +React Compiler automatically applies the optimal memoization, ensuring your app only re-renders when necessary. #### What kind of memoization does React Compiler add? {/*what-kind-of-memoization-does-react-compiler-add*/} @@ -154,7 +169,7 @@ Next.js users can enable the swc-invoked React Compiler by using [v15.3.1](https ## What should I do about useMemo, useCallback, and React.memo? {/*what-should-i-do-about-usememo-usecallback-and-reactmemo*/} -If you are using React Compiler, [`useMemo`](/reference/react/useMemo), [`useCallback`](/reference/react/useCallback), and [`React.memo`](/reference/react/memo) can be removed. React Compiler adds automatic memoization more precisely and granularly than is possible with these hooks. If you choose to keep manual memoization, React Compiler will analyze them and determine if your manual memoization matches its automatically inferred memoization. If there isn't a match, the compiler will choose to bail out of optimizing that component. +React Compiler adds automatic memoization more precisely and granularly than is possible with [`useMemo`](/reference/react/useMemo), [`useCallback`](/reference/react/useCallback), and [`React.memo`](/reference/react/memo). If you choose to keep manual memoization, React Compiler will analyze them and determine if your manual memoization matches its automatically inferred memoization. If there isn't a match, the compiler will choose to bail out of optimizing that component. This is done out of caution as a common anti-pattern with manual memoization is using it for correctness. This means your app depends on specific values being memoized to work properly. For example, in order to prevent an infinite loop, you may have memoized some values to stop a `useEffect` call from firing. This breaks the Rules of React, but since it can potentially be dangerous for the compiler to automatically remove manual memoization, the compiler will just bail out instead. You should manually remove your handwritten memoization and verify that your app still works as expected. diff --git a/src/content/learn/reusing-logic-with-custom-hooks.md b/src/content/learn/reusing-logic-with-custom-hooks.md index b6562e2df..de68dd190 100644 --- a/src/content/learn/reusing-logic-with-custom-hooks.md +++ b/src/content/learn/reusing-logic-with-custom-hooks.md @@ -1419,10 +1419,29 @@ Similar to a [design system,](https://uxdesign.cc/everything-you-need-to-know-ab #### Will React provide any built-in solution for data fetching? {/*will-react-provide-any-built-in-solution-for-data-fetching*/} +Today, with the [`use`](/reference/react/use#streaming-data-from-server-to-client) API, data can be read in render by passing a [Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) to `use`: + +```js {1,4,11} +import { use, Suspense } from "react"; + +function Message({ messagePromise }) { + const messageContent = use(messagePromise); + return

Here is the message: {messageContent}

; +} + +export function MessageContainer({ messagePromise }) { + return ( + ⌛Downloading message...

}> + + + ); +} +``` + We're still working out the details, but we expect that in the future, you'll write data fetching like this: ```js {1,4,6} -import { use } from 'react'; // Not available yet! +import { use } from 'react'; function ShippingForm({ country }) { const cities = use(fetch(`/api/cities?country=${country}`)); diff --git a/src/content/learn/tutorial-tic-tac-toe.md b/src/content/learn/tutorial-tic-tac-toe.md index ab4d5aff3..bc883a40a 100644 --- a/src/content/learn/tutorial-tic-tac-toe.md +++ b/src/content/learn/tutorial-tic-tac-toe.md @@ -283,7 +283,7 @@ In CodeSandbox you'll see three main sections: ![CodeSandbox with starter code](../images/tutorial/react-starter-code-codesandbox.png) -1. The _Files_ section with a list of files like `App.js`, `index.js`, `styles.css` and a folder called `public` +1. The _Files_ section with a list of files like `App.js`, `index.js`, `styles.css` in `src` folder and a folder called `public` 1. The _code editor_ where you'll see the source code of your selected file 1. The _browser_ section where you'll see how the code you've written will be displayed diff --git a/src/content/learn/typescript.md b/src/content/learn/typescript.md index 4589ae82d..d475eb1a2 100644 --- a/src/content/learn/typescript.md +++ b/src/content/learn/typescript.md @@ -32,14 +32,20 @@ TypeScript — це популярний спосіб додавання виз Щоб встановити останню версію визначень типів для React, виконайте команду: -npm install @types/react @types/react-dom +npm install --save-dev @types/react @types/react-dom У вашому `tsconfig.json` потрібно вказати такі параметри компілятора: +<<<<<<< HEAD 1. `dom` має бути додано до параметру [`lib`](https://www.typescriptlang.org/tsconfig/#lib) (Зауважте: якщо параметр `lib` не вказаний, то `dom` вже додано). 2. Параметр [`jsx`](https://www.typescriptlang.org/tsconfig/#jsx) повинен мати одне з допустимих значень. Для більшості застосунків достатньо вказати `preserve`. Якщо ви публікуєте бібліотеку, зверніться до [документації `jsx`](https://www.typescriptlang.org/tsconfig/#jsx), щоб вибрати правильне значення. +======= +1. `dom` must be included in [`lib`](https://www.typescriptlang.org/tsconfig/#lib) (Note: If no `lib` option is specified, `dom` is included by default). +2. [`jsx`](https://www.typescriptlang.org/tsconfig/#jsx) must be set to one of the valid options. `preserve` should suffice for most applications. + If you're publishing a library, consult the [`jsx` documentation](https://www.typescriptlang.org/tsconfig/#jsx) on what value to choose. +>>>>>>> a5181c291f01896735b65772f156cfde34df20ee ## TypeScript з компонентами React {/*typescript-with-react-components*/} diff --git a/src/content/reference/react-dom/components/form.md b/src/content/reference/react-dom/components/form.md index 356637bcd..b17b1a40b 100644 --- a/src/content/reference/react-dom/components/form.md +++ b/src/content/reference/react-dom/components/form.md @@ -38,7 +38,7 @@ To create interactive controls for submitting information, render the [built-in `
` supports all [common element props.](/reference/react-dom/components/common#common-props) -[`action`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/form#action): a URL or function. When a URL is passed to `action` the form will behave like the HTML form component. When a function is passed to `action` the function will handle the form submission. The function passed to `action` may be async and will be called with a single argument containing the [form data](https://developer.mozilla.org/en-US/docs/Web/API/FormData) of the submitted form. The `action` prop can be overridden by a `formAction` attribute on a `