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 …

Quick Start Welcome to the React documentation! This page will give you an introduction to 80% of the React concepts that you will use on a daily basis.

至此，你已经了解了如何编写 React 代码的基本知识。 接下来你可以查看 实战教程 并把它们付诸实践，用 React 建立第一个迷你应用程序。

Server APIs - The react-dom/server APIs let you render React components to HTML on the server. Static APIs - The react-dom/static APIs let you generate static HTML for React components.

You can use as little or as much React as you need. Whether you want to get a taste of React, add some interactivity to an HTML page, or start a complex React-powered app, this section will help you …

React Developer Tools is a browser extension that can inspect React components, edit props and state, and identify performance problems. Learn how to install it here.

Read Your UI as a Tree to learn how to create a render and module dependency trees for a React app and how they’re useful mental models for improving user experience and performance.

If you want to build your own solutions, see our guide to build a React app from Scratch for instructions on how to set up a new React project starting with a build tool like Vite, Parcel, or RSbuild.

¡En este punto ya conoces los elementos básicos de como escribir código en React! Prueba el Tutorial para ponerlos en práctica y construir tu primera miniaplicación de React.

Oct 7, 2025 · This blog is the official source for the updates from the React team. Anything important, including release notes or deprecation notices, will be posted here first.