d4ce8463a8
Summary: This sync includes the following changes: - **[8e25ed20b](https://github.com/facebook/react/commit/8e25ed20b )**: Unify noop and test renderer assertion APIs (#14952) //<Andrew Clark>// - **[870214f37](https://github.com/facebook/react/commit/870214f37 )**: Deprecate ref.setNativeProps in favor of ReactNative.setNativeProps (#14912) //<Eli White>// - **[3989c0950](https://github.com/facebook/react/commit/3989c0950 )**: eslint-plugin-react-hooks@1.3.0 //<Dan Abramov>// - **[1bbfbc98d](https://github.com/facebook/react/commit/1bbfbc98d )**: [ESLint] Add more cases to exhaustive-deps rule (#14930) //<Dan Abramov>// - **[412f88296](https://github.com/facebook/react/commit/412f88296 )**: fix(eslint-plugin-react-hooks): node engine updated to version 7 because of object.entries(#14951) //<Farhad Yasir>// - **[ba708fa79](https://github.com/facebook/react/commit/ba708fa79 )**: Remove ReactNoop.flushDeferredPri and flushUnitsOfWork (#14934) //<Andrew Clark>// - **[920b0bbb3](https://github.com/facebook/react/commit/920b0bbb3 )**: [scheduler] Pass didTimeout argument to callbacks (#14931) //<Andrew Clark>// - **[f99fca3cb](https://github.com/facebook/react/commit/f99fca3cb )**: Fix sample ESLint configuration (#14926) //<Matt Thomson>// - **[22bb94764](https://github.com/facebook/react/commit/22bb94764 )**: Release eslint-plugin-react-hooks@1.2.0 //<Dan Abramov>// - **[a77bbf1a1](https://github.com/facebook/react/commit/a77bbf1a1 )**: [ESLint] Warn against assignments from inside Hooks (#14916) //<Dan Abramov>// - **[219ce8a9c](https://github.com/facebook/react/commit/219ce8a9c )**: Fix tracing fixture (#14917) //<Dan Abramov>// - **[8c1966590](https://github.com/facebook/react/commit/8c1966590 )**: Release 16.8.3 //<Dan Abramov>// - **[7de4d2391](https://github.com/facebook/react/commit/7de4d2391 )**: Fix UMD builds by re-exporting the scheduler priorities (#14914) //<Dan Abramov>// - **[d0318fb3f](https://github.com/facebook/react/commit/d0318fb3f )**: Updating copyright headers, dropping the year (#14893) //<Nathan Hunzaker>// - **[f978d5fde](https://github.com/facebook/react/commit/f978d5fde )**: Fix warning message for new setNativeProps method. on -> with (#14909) //<Eli White>// - **[b0f45c0fc](https://github.com/facebook/react/commit/b0f45c0fc )**: Adding ReactNative.setNativeProps that takes a ref (#14907) //<Eli White>// - **[4f4aa69f1](https://github.com/facebook/react/commit/4f4aa69f1 )**: Adding setNativeProps tests for NativeMethodsMixin (#14901) //<Eli White>// - **[b96b61dc4](https://github.com/facebook/react/commit/b96b61dc4 )**: Use the canonical nativeTag for Fabric's setNativeProps (#14900) //<Eli White>// - **[dab2fdbbb](https://github.com/facebook/react/commit/dab2fdbbb )**: Add eslint-plugin-react-hooks/exhaustive-deps rule to check stale closure dependencies (#14636) //<Dan Abramov>// - **[1493abd7e](https://github.com/facebook/react/commit/1493abd7e )**: Deleted empty App.css (#14149) //<Josh R>// - **[13645d224](https://github.com/facebook/react/commit/13645d224 )**: Deal with fallback content in Partial Hydration (#14884) //<Sebastian Markbåge>// - **[c506ded3b](https://github.com/facebook/react/commit/c506ded3b )**: Don't discard render phase state updates with the eager reducer optimization (#14852) //<Dan Abramov>// - **[0e67969cb](https://github.com/facebook/react/commit/0e67969cb )**: Prompt to include UMD build artifact links in GitHub release (#14864) //<Brian Vaughn>// - **[fad0842fd](https://github.com/facebook/react/commit/fad0842fd )**: Release scripts documentation (#14863) //<Brian Vaughn>// - **[ab7a67b1d](https://github.com/facebook/react/commit/ab7a67b1d )**: Fix react-dom/server context leaks when render stream destroyed early (#14706) //<overlookmotel>// - **[3e5556043](https://github.com/facebook/react/commit/3e5556043 )**: Release 16.8.2 //<Dan Abramov>// - **[dfabb77a9](https://github.com/facebook/react/commit/dfabb77a9 )**: Include another change in 16.8.2 //<Dan Abramov>// - **[c555c008b](https://github.com/facebook/react/commit/c555c008b )**: Include component stack in 'act(...)' warning (#14855) //<Sunil Pai>// - **[ff188d666](https://github.com/facebook/react/commit/ff188d666 )**: Add React 16.8.2 changelog (#14851) //<Dan Abramov>// - **[c4d8ef643](https://github.com/facebook/react/commit/c4d8ef643 )**: Fix typo in code comment (#14836) //<Deniz Susman>// - **[08e955435](https://github.com/facebook/react/commit/08e955435 )**: Statically enable suspense/partial hydration flag in www (#14842) //<Sebastian Markbåge>// - **[0e4135e8c](https://github.com/facebook/react/commit/0e4135e8c )**: Revert "[ShallowRenderer] Queue/rerender on dispatched action after render component with hooks (#14802)" (#14839) //<Dan Abramov>// - **[6d4038f0a](https://github.com/facebook/react/commit/6d4038f0a )**: [ShallowRenderer] Queue/rerender on dispatched action after render component with hooks (#14802) //<Rodrigo Ribeiro>// - **[fa6205d52](https://github.com/facebook/react/commit/fa6205d52 )**: Special case crossOrigin for SVG image elements (#14832) //<Brandon Dail>// - **[c6bee765b](https://github.com/facebook/react/commit/c6bee765b )**: Remove false positive warning and add TODOs about `current` being non-null (#14821) //<DanAbramov>// - **[3ae94e188](https://github.com/facebook/react/commit/3ae94e188 )**: Fix ignored sync work in passive effects (#14799) //<Dan Abramov>// - **[f3a14951a](https://github.com/facebook/react/commit/f3a14951a )**: Partial Hydration (#14717) //<Sebastian Markbåge>// Changelog: [GENERAL] [Changed] React sync for revisions f24a0da...22bb947 Reviewed By: gaearon Differential Revision: D14160361 fbshipit-source-id: fffdc922f3ee5dfeeee656a8f213a6d3c03e8481
React Native · 
Learn once, write anywhere: Build mobile apps with React.
See the official React Native website for an introduction to React Native.
Requirements
Supported target operating systems are >= Android 4.1 (API 16) and >= iOS 9.0. You may use Windows, macOS, or Linux as your development operating system, though building and running iOS apps is limited to macOS by default (tools like Expo can be used to get 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:
How React Native works
React Native lets you build mobile apps using JavaScript. It uses the same design as React, letting you compose a rich mobile UI from declarative components.
With React Native, you don't build a "mobile web app", an "HTML5 app", or a "hybrid app". You build a real mobile app that's indistinguishable from an app built using Objective-C, Java, Kotlin, or Swift. React Native uses the same fundamental UI building blocks as regular iOS and Android apps. You just put those building blocks together using JavaScript and React.
React Native lets you build your app faster. Instead of recompiling, you can reload your app instantly. With hot reloading, you can even run new code while retaining your application state.
React Native combines smoothly with components written in Objective-C, Java, Kotlin, or Swift. It's simple to drop down to native code if you need to optimize a few aspects of your application. It's also easy to build part of your app in React Native, and part of your app using native code directly - that's how the Facebook app works.
The focus of React Native is on developer efficiency across all the platforms you care about - learn once, write anywhere. Facebook uses React Native in multiple production apps and will continue investing in React Native. You can learn more about our open source roadmap in this blog post: Open Source Roadmap.
Full documentation
The full documentation for React Native can be found on our website. The source for the React Native documentation and website is hosted on a separate repo, https://github.com/facebook/react-native-website. Releases are discussed in the React Native Community, https://github.com/react-native-community/react-native-releases, and larger discussions and proposals are in https://github.com/react-native-community/discussions-and-proposals.
The React Native documentation only discusses the components, APIs, and topics specific to React Native (React on iOS and Android). For further documentation on the React API that is shared between React Native and React DOM, refer to the React documentation.
Join the React Native community
- Website: https://facebook.github.io/react-native
- Twitter: https://twitter.com/reactnative
- Help: https://facebook.github.io/react-native/en/help
See the CONTRIBUTING file for how to help out.
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.