Files
react/packages/react
Andrew Clark 2d51251e60 Clean up deferRenderPhaseUpdateToNextBatch (#26511)
This is a change to some undefined behavior that we though we would do
at one point but decided not to roll out. It's already disabled
everywhere, so this just deletes the branch from the implementation and
the tests.
2023-03-30 14:10:19 -04:00
..
2023-01-31 08:25:05 -05:00

react

React is a JavaScript library for creating user interfaces.

The react package contains only the functionality necessary to define React components. It is typically used together with a React renderer like react-dom for the web, or react-native for the native environments.

Note: by default, React will be in development mode. The development version includes extra warnings about common mistakes, whereas the production version includes extra performance optimizations and strips all error messages. Don't forget to use the production build when deploying your application.

Usage

import { useState } from 'react';
import { createRoot } from 'react-dom/client';

function Counter() {
  const [count, setCount] = useState(0);
  return (
    <>
      <h1>{count}</h1>
      <button onClick={() => setCount(count + 1)}>
        Increment
      </button>
    </>
  );
}

const root = createRoot(document.getElementById('root'));
root.render(<Counter />);

Documentation

See https://react.dev/

API

See https://react.dev/reference/react