Summary: This sync includes the following changes: - **[48b687fc9](https://github.com/facebook/react/commit/48b687fc9 )**: [trusted types][www] Add enableTrustedTypesIntegration flag back in ([#26016](https://github.com/facebook/react/pull/26016)) //<an onion>// - **[9b1423cc0](https://github.com/facebook/react/commit/9b1423cc0 )**: Revert "Hold host functions in var" ([#26079](https://github.com/facebook/react/pull/26079)) //<Samuel Susla>// - **[ce09ace9a](https://github.com/facebook/react/commit/ce09ace9a )**: Improve Error Messages when Access Client References ([#26059](https://github.com/facebook/react/pull/26059)) //<Sebastian Markbåge>// - **[0652bdbd1](https://github.com/facebook/react/commit/0652bdbd1 )**: Add flow types to Maps in ReactNativeViewConfigRegistry.js ([#26064](https://github.com/facebook/react/pull/26064)) //<Samuel Susla>// - **[ee8509801](https://github.com/facebook/react/commit/ee8509801 )**: [cleanup] remove deletedTreeCleanUpLevel feature flag ([#25529](https://github.com/facebook/react/pull/25529)) //<Jan Kassens>// - **[0e31dd028](https://github.com/facebook/react/commit/0e31dd028 )**: Remove findDOMNode www shim ([#25998](https://github.com/facebook/react/pull/25998)) //<Jan Kassens>// - **[379dd741e](https://github.com/facebook/react/commit/379dd741e )**: [www] set enableTrustedTypesIntegration to false ([#25997](https://github.com/facebook/react/pull/25997)) //<Jan Kassens>// - **[555ece0cd](https://github.com/facebook/react/commit/555ece0cd )**: Don't warn about concurrently rendering contexts if we finished rendering ([#22797](https://github.com/facebook/react/pull/22797)) //<Sebastian Silbermann>// - **[0fce6bb49](https://github.com/facebook/react/commit/0fce6bb49 )**: [cleanup] remove feature flags warnAboutDefaultPropsOnFunctionComponents and warnAboutStringRefs ([#25980](https://github.com/facebook/react/pull/25980)) //<Jan Kassens>// - **[7002a6743](https://github.com/facebook/react/commit/7002a6743 )**: [cleanup] remove unused values from ReactFeatureFlags.www-dynamic ([#25575](https://github.com/facebook/react/pull/25575)) //<Jan Kassens>// - **[a48e54f2b](https://github.com/facebook/react/commit/a48e54f2b )**: [cleanup] remove old feature flag warnAboutDeprecatedLifecycles ([#25978](https://github.com/facebook/react/pull/25978)) //<Jan Kassens>// - **[0f4a83596](https://github.com/facebook/react/commit/0f4a83596 )**: Remove duplicate JSResourceReferenceImpl mock ([#25976](https://github.com/facebook/react/pull/25976)) //<Jan Kassens>// - **[c49131669](https://github.com/facebook/react/commit/c49131669 )**: Remove unused Flow suppressions ([#25977](https://github.com/facebook/react/pull/25977)) //<Jan Kassens>// - **[afe6521e1](https://github.com/facebook/react/commit/afe6521e1 )**: Refactor: remove useless parameter ([#25923](https://github.com/facebook/react/pull/25923)) //<Chris>// - **[34464fb16](https://github.com/facebook/react/commit/34464fb16 )**: Upgrade to Flow 0.196.3 ([#25974](https://github.com/facebook/react/pull/25974)) //<Jan Kassens>// - **[e2424f33b](https://github.com/facebook/react/commit/e2424f33b )**: [flow] enable exact_empty_objects ([#25973](https://github.com/facebook/react/pull/25973)) //<Jan Kassens>// - **[0b4f44302](https://github.com/facebook/react/commit/0b4f44302 )**: [flow] enable enforce_local_inference_annotations ([#25921](https://github.com/facebook/react/pull/25921)) //<Jan Kassens>// - **[0b974418c](https://github.com/facebook/react/commit/0b974418c )**: [Fizz] Fork Fizz instruction set for inline script and external runtime ([#25862](https://github.com/facebook/react/pull/25862)) //<mofeiZ>// - **[5379b6123](https://github.com/facebook/react/commit/5379b6123 )**: Batch sync, default and continuous lanes ([#25700](https://github.com/facebook/react/pull/25700)) //<Tianyu Yao>// - **[bbf4d2211](https://github.com/facebook/react/commit/bbf4d2211 )**: Update import for babel-code-frame in build script ([#25963](https://github.com/facebook/react/pull/25963)) //<Ming Ye>// - **[b83baf63f](https://github.com/facebook/react/commit/b83baf63f )**: Transform updates to support Flow this annotation syntax ([#25918](https://github.com/facebook/react/pull/25918)) //<Jan Kassens>// - **[c2d655207](https://github.com/facebook/react/commit/c2d655207 )**: Unify `use` and `renderDidSuspendDelayIfPossible` implementations ([#25922](https://github.com/facebook/react/pull/25922)) //<Andrew Clark>// - **[48274a43a](https://github.com/facebook/react/commit/48274a43a )**: Remove vestigial Suspense batching logic ([#25861](https://github.com/facebook/react/pull/25861)) //<Andrew Clark>// - **[de7d1c907](https://github.com/facebook/react/commit/de7d1c907 )**: Add `fetchPriority` to `<img>` and `<link>` ([#25927](https://github.com/facebook/react/pull/25927)) //<Steven>// - **[81d4ee9ca](https://github.com/facebook/react/commit/81d4ee9ca )**: reconciler docs: fix small typo - "mode" (instead of "node") ([#25863](https://github.com/facebook/react/pull/25863)) //<satelllte>// - **[5fcf1a4b4](https://github.com/facebook/react/commit/5fcf1a4b4 )**: Bugfix: Synchronous ping during render phase sometimes unwinds the stack, leading to crash ([#25851](https://github.com/facebook/react/pull/25851)) //<Andrew Clark>// - **[2b1fb91a5](https://github.com/facebook/react/commit/2b1fb91a5 )**: ESLint upgrade to use hermes-eslint ([#25915](https://github.com/facebook/react/pull/25915)) //<Jan Kassens>// - **[fabef7a6b](https://github.com/facebook/react/commit/fabef7a6b )**: Resubmit Add HydrationSyncLane ([#25878](https://github.com/facebook/react/pull/25878)) //<Tianyu Yao>// - **[7efa9e597](https://github.com/facebook/react/commit/7efa9e597 )**: Fix unwinding context during selective hydration ([#25876](https://github.com/facebook/react/pull/25876)) //<Tianyu Yao>// - **[84a0a171e](https://github.com/facebook/react/commit/84a0a171e )**: Rename experimental useEvent to useEffectEvent ([#25881](https://github.com/facebook/react/pull/25881)) //<Sebastian Markbåge>// - **[4dda96a40](https://github.com/facebook/react/commit/4dda96a40 )**: [react-www] remove forked bundle ([#25866](https://github.com/facebook/react/pull/25866)) //<Jan Kassens>// - **[9c09c1cd6](https://github.com/facebook/react/commit/9c09c1cd6 )**: Revert "Fork ReactDOMSharedInternals for www ([#25791](https://github.com/facebook/react/pull/25791))" ([#25864](https://github.com/facebook/react/pull/25864)) //<lauren>// - **[996e4c0d5](https://github.com/facebook/react/commit/996e4c0d5 )**: Offscreen add attach ([#25603](https://github.com/facebook/react/pull/25603)) //<Samuel Susla>// - **[b14d7fa4b](https://github.com/facebook/react/commit/b14d7fa4b )**: Add support for setNativeProps to Fabric ([#25737](https://github.com/facebook/react/pull/25737)) //<Samuel Susla>// - **[819687279](https://github.com/facebook/react/commit/819687279 )**: [Float] Fix typo in ReactDOMResourceValidation.js ([#25798](https://github.com/facebook/react/pull/25798)) //<Ikko Ashimine>// - **[5dfc485f6](https://github.com/facebook/react/commit/5dfc485f6 )**: fix tests for when float is off ([#25839](https://github.com/facebook/react/pull/25839)) //<Josh Story>// - **[bfcbf3306](https://github.com/facebook/react/commit/bfcbf3306 )**: toString children of title ([#25838](https://github.com/facebook/react/pull/25838)) //<Sebastian Markbåge>// - **[d4bc16a7d](https://github.com/facebook/react/commit/d4bc16a7d )**: Revert "[react-www] remove forked bundle" ([#25837](https://github.com/facebook/react/pull/25837)) //<Ricky>// - **[d69b2cf82](https://github.com/facebook/react/commit/d69b2cf82 )**: [bug fix] revert values in ReactFiberFlags to keep consistency for devtools ([#25832](https://github.com/facebook/react/pull/25832)) //<Mengdi Chen>// - **[645ae2686](https://github.com/facebook/react/commit/645ae2686 )**: [react-www] remove forked bundle ([#25831](https://github.com/facebook/react/pull/25831)) //<Jan Kassens>// - **[d807eb52c](https://github.com/facebook/react/commit/d807eb52c )**: Revert recent hydration changes ([#25812](https://github.com/facebook/react/pull/25812)) //<Andrew Clark>// - **[2ccfa657d](https://github.com/facebook/react/commit/2ccfa657d )**: Fork ReactDOMSharedInternals for www ([#25791](https://github.com/facebook/react/pull/25791)) //<lauren>// - **[f0534ae94](https://github.com/facebook/react/commit/f0534ae94 )**: Avoid replaying SelectiveHydrationException in dev ([#25754](https://github.com/facebook/react/pull/25754)) //<Tianyu Yao>// - **[7fab379d8](https://github.com/facebook/react/commit/7fab379d8 )**: fix link to ReactDOMHostconfig in reconciler docs ([#25788](https://github.com/facebook/react/pull/25788)) //<Dmitry>// - **[500c8aa08](https://github.com/facebook/react/commit/500c8aa08 )**: Add component name to StrictMode error message ([#25718](https://github.com/facebook/react/pull/25718)) //<Samuel Susla>// - **[353c30252](https://github.com/facebook/react/commit/353c30252 )**: Hold host functions in var ([#25741](https://github.com/facebook/react/pull/25741)) //<Samuel Susla>// Changelog: [General][Changed] - React Native sync for revisions 17f6912...48b687f jest_e2e[run_all_tests] Reviewed By: rubennorte Differential Revision: D42855483 fbshipit-source-id: c244a595bb2d490a23b333c1b16d04a459ec94fc
FileReader and XMLHttpRequest states (#36000)
React Native
Learn once, write anywhere:
Build mobile apps with React.
Getting Started · Learn the Basics · Showcase · Contribute · Community · Support
React Native brings React's declarative UI framework to iOS and Android. With React Native, you use native UI controls and have full access to the native platform.
- Declarative. React makes it painless to create interactive UIs. Declarative views make your code more predictable and easier to debug.
- Component-Based. Build encapsulated components that manage their state, then compose them to make complex UIs.
- Developer Velocity. See local changes in seconds. Changes to JavaScript code can be live reloaded without rebuilding the native app.
- Portability. Reuse code across iOS, Android, and other platforms.
React Native is developed and supported by many companies and individual core contributors. Find out more in our ecosystem overview.
Contents
- Requirements
- Building your first React Native app
- Documentation
- Upgrading
- How to Contribute
- Code of Conduct
- License
📋 Requirements
React Native apps may target iOS 12.4 and Android 5.0 (API 21) or newer. You may use Windows, macOS, or Linux as your development operating system, though building and running iOS apps is limited to macOS. Tools like Expo can be used to work around this.
🎉 Building your first React Native app
Follow the Getting Started guide. The recommended way to install React Native depends on your project. Here you can find short guides for the most common scenarios:
📖 Documentation
The full documentation for React Native can be found on our website.
The React Native documentation discusses components, APIs, and topics that are specific to React Native. For further documentation on the React API that is shared between React Native and React DOM, refer to the React documentation.
The source for the React Native documentation and website is hosted on a separate repo, @facebook/react-native-website.
🚀 Upgrading
Upgrading to new versions of React Native may give you access to more APIs, views, developer tools, and other goodies. See the Upgrading Guide for instructions.
React Native releases are discussed in this discussion repo.
👏 How to Contribute
The main purpose of this repository is to continue evolving React Native core. We want to make contributing to this project as easy and transparent as possible, and we are grateful to the community for contributing bug fixes and improvements. Read below to learn how you can take part in improving React Native.
Code of Conduct
Facebook has adopted a Code of Conduct that we expect project participants to adhere to. Please read the full text so that you can understand what actions will and will not be tolerated.
Contributing Guide
Read our Contributing Guide to learn about our development process, how to propose bugfixes and improvements, and how to build and test your changes to React Native.
Open Source Roadmap
You can learn more about our vision for React Native in the Roadmap.
Good First Issues
We have a list of good first issues that contain bugs which have a relatively limited scope. This is a great place to get started, gain experience, and get familiar with our contribution process.
Discussions
Larger discussions and proposals are discussed in @react-native-community/discussions-and-proposals.
📄 License
React Native is MIT licensed, as found in the LICENSE file.
React Native documentation is Creative Commons licensed, as found in the LICENSE-docs file.