Introducing Hooks – React
These docs are old and won’t be updated. Go to react.dev for the new React docs. These new documentation pages teach React with Hooks: Quick Start Tutorial react: Hooks Hooks are a new addition in React 16.8. They let you use state and other React features without writing a class. import React, { useState } from 'react'; function Example() { // Declare a new state variable, which we'll call "count
React v16.13.0 – React Blog
This blog site has been archived. Go to react.dev/blog to see the recent posts. Today we are releasing React 16.13.0. It contains bugfixes and new deprecation warnings to help prepare for a future major release. New Warnings Warnings for some updates during render A React component should not cause side effects in other components during rendering. It is supported to call setState during render, b
Hooks API Reference – React
These docs are old and won’t be updated. Go to react.dev for the new React docs. These new documentation pages teach modern React: react: Hooks Hooks are a new addition in React 16.8. They let you use state and other React features without writing a class. This page describes the APIs for the built-in Hooks in React. If you’re new to Hooks, you might want to check out the overview first. You may a
Update on Async Rendering – React Blog
This blog site has been archived.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 you some of the lessons we’ve learned while working on these features, and some rec
React v16.3.0: New lifecycles and context API - React Blog
This blog site has been archived.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 introducing new APIs for long requested features: an official context API, a ref forwardin
Context – React
These docs are old and won’t be updated. Go to react.dev for the new React docs. These new documentation pages teach modern React and include live examples: Passing Data Deeply with Context useContext Context provides a way to pass data through the component tree without having to pass props down manually at every level. In a typical React application, data is passed top-down (parent to child) via
GraphQL Introduction – React Blog
This blog site has been archived. Go to react.dev/blog to see the recent posts. At the React.js conference in late January 2015, we revealed our next major technology in the React family: Relay. Relay is a new way of structuring client applications that co-locates data-fetching requirements and React components. Instead of placing data fetching logic in some other part of the client application –
Flux: Actions and the Dispatcher – React Blog
This blog site has been archived. Go to react.dev/blog to see the recent posts. Flux is the application architecture Facebook uses to build JavaScript applications. It’s based on a unidirectional data flow. We’ve built everything from small widgets to huge applications with Flux, and it’s handled everything we’ve thrown at it. Because we’ve found it to be a great way to structure our code, we’re e
React – A JavaScript library for building user interfaces
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 and easier to debug. Build encapsulated components that manage their own state, then compose them to make complex UIs. Since component logic is writ
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Use React and JSX in Python Applications – React Blog