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React is a JavaScript library for building user interfaces. Declarative: React makes it painless to create interactive UIs. Design simple views for each state in your application, and React will efficiently update and render just the right components when your data changes. Declarative views make your code more predictable, simpler to understand, and easier to debug. Component-Based: Build encapsu
React Add Hooks — a way to use state and other React features without writing a class. (@acdlite et al. in #13968) Improve the useReducer Hook lazy initialization API. (@acdlite in #14723) React DOM Bail out of rendering on identical values for useState and useReducer Hooks. (@acdlite in #14569) Use Object.is algorithm for comparing useState and useReducer values. (@Jessidhia in #14752) Don’t comp
Commits: v1.7.0...v2.0.0 Breaking Relay now uses new Context API instead of Legacy Context API. Any consumers of Relay context using the Legacy context API will break. Removed experimental support for @deferrable directive Upgrade graphql to 14.0.0 Upgrade react to 16.5.0 relay-compiler: Rename inputFieldWhitelist to optionalInputFields. Merge graphql-compiler into relay-compiler (#2593) Selector
Added Tranform files can be written in Typescript. If the file extension of the transform file is .ts or .tsx, @babel/preset-typescript is used to convert them. This requires the --babel option to be set (which it is by default). ( #287 , @brieb ) Changed The preset and plugins for converting the transform file itself via babeljs have been updated to work with babel v7. This included removing babe
🚀 New Feature create-react-app, react-scripts #5550 Add TypeScript app creation (@Timer) babel-preset-react-app, react-scripts #4837 TypeScript support using Babel 7 (@brunolemos) 🐛 Bug Fix react-scripts #5611 Remove react-scripts type reference on eject. (@Timer) #5614 Ignore json files from TypeScript type checking. (@brunolemos) #5609 Remove unsupported options. (@Timer) #5608 Ignore test fil
16.5.0 (September 5, 2018) React Add a warning if React.forwardRef render function doesn't take exactly two arguments (@bvaughn in #13168) Improve the error message when passing an element to createElement by mistake (@DCtheTall in #13131) Don't call profiler onRender until after mutations (@bvaughn in #13572) React DOM Add support for React DevTools Profiler (@bvaughn in #13058) Add react-dom/pro
For latest status, see an update from June 5th, 2019: #13525 (comment) This year, the React team has mostly been focused on fundamental improvements to React. As this work is getting closer to completion, we're starting to think of what the next major releases of React DOM should look like. There are quite a few known problems, and some of them are hard or impossible to fix without bigger internal
>> react-native info React Native Environment Info: System: OS: macOS High Sierra 10.13.6 CPU: x64 Intel(R) Core(TM) i7-4980HQ CPU @ 2.80GHz Memory: 554.38 MB / 16.00 GB Shell: 5.3 - /bin/zsh Binaries: Node: 8.12.0 - ~/.nvm/versions/node/v8.12.0/bin/node Yarn: 1.9.4 - /usr/local/bin/yarn npm: 6.4.1 - ~/.nvm/versions/node/v8.12.0/bin/npm Watchman: 4.9.0 - /usr/local/bin/watchman SDKs: iOS SDK: Plat
Likely to cause new Flow errors: We've changed how Flow lint severity is calculated. We used to look at every location mentioned by a lint and we'd use the lowest severity, where Off < Warn < Error. Now we just use the severity at the lint's first location. Flow suppression comments (e.g. // $FlowFixMe) can still suppress a lint at any mentioned location. Depending on your setup, this change may e
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