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React v18.0
The library for web and native user interfaces
React Blog
React is the library for web and native user interfaces. Build user interfaces out of individual pieces called components written in JavaScript. React is designed to let you seamlessly combine components written by independent people, teams, and organizations.
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Visit reactjs.org → RSS feedOn Hacker News Nov 2017 – Mar 2022
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With React 16.8, React Hooks are available in a stable release
This blog site has been archived. Go to react.dev/blog to see the recent posts. With React 16.8, React Hooks are available in a stable release! What Are Hooks? Hooks let you use state and other React features without writing a class. You can also build your own Hooks to share reusable stateful logic between…
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New React DevTools
We are excited to announce a new release of the React Developer Tools, available today in Chrome, Firefox, and (Chromium) Edge! What’s changed? A lot has changed in version 4! At a high level, this new version should offer significant performance gains and an improved navigation experience. It also offers full support…
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Update on Async Rendering
This blog site has been archived. Go to react.dev/blog to see the recent posts. For over a year, the React team has been working to implement asynchronous rendering. Last month during his talk at JSConf Iceland, Dan unveiled some of the exciting new possibilities async rendering unlocks. Now we’d like to share with…
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React v16.3.0: New lifecycles and context API
This blog site has been archived. Go to react.dev/blog to see the recent posts. A few days ago, we wrote a post about upcoming changes to our legacy lifecycle methods, including gradual migration strategies. In React 16.3.0, we are adding a few new lifecycle methods to assist with that migration. We are also…
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Zero-Bundle-Size React Server Components
This blog site has been archived. Go to react.dev/blog to see the recent posts. 2020 has been a long year. As it comes to an end we wanted to share a special Holiday Update on our research into zero-bundle-size React Server Components. To introduce React Server Components, we have prepared a talk and a demo. If you…
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React v17.0 Release Candidate: No New Features
This blog site has been archived. Go to react.dev/blog to see the recent posts. Today, we are publishing the first Release Candidate for React 17. It has been two and a half years since the previous major release of React, which is a long time even by our standards! In this blog post, we will describe the role of this…
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Create React App 2.0: Babel 7, Sass, and More
This blog site has been archived. Go to react.dev/blog to see the recent posts. Create React App 2.0 has been released today, and it brings a year’s worth of improvements in a single dependency update. While React itself doesn’t require any build dependencies, it can be challenging to write a complex app without a…
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New JSX Transform
This blog site has been archived. Go to react.dev/blog to see the recent posts. Although React 17 doesn’t contain new features, it will provide support for a new version of the JSX transform. In this post, we will describe what it is and how to try it. What’s a JSX Transform? Browsers don’t understand JSX out of the…
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React v16.6.0: lazy, memo and contextType
This blog site has been archived. Go to react.dev/blog to see the recent posts. Today we’re releasing React 16.6 with a few new convenient features. A form of PureComponent/shouldComponentUpdate for function components, a way to do code splitting using Suspense and an easier way to consume Context from class…
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The Plan for React 18
The library for web and native user interfaces
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React v16.2.0: Improved Support for Fragments
This blog site has been archived. Go to react.dev/blog to see the recent posts. React 16.2 is now available! The biggest addition is improved support for returning multiple children from a component’s render method. We call this feature fragments: Fragments look like empty JSX tags. They let you group a list of…