Fix the false positive warning about react-dom/client when using UMD bundle. (@alireza-molaee in #24274)
Fix suppressHydrationWarning to work in production too. (@gaearon in #24271)
Fix componentWillUnmount firing twice inside of Suspense. (@acdlite in #24308)
Fix some transition updates being ignored. (@acdlite in #24353)
Fix useDeferredValue causing an infinite loop when passed an unmemoized value. (@acdlite in #24247)
Fix throttling of revealing Suspense fallbacks. (@sunderls in #24253)
Fix an inconsistency in whether the props object is the same between renders. (@Andarist and @acdlite in #24421)
Fix a missing warning about a setState loop in useEffect. (@gaearon in #24298)
Fix a spurious hydration error. (@gnoff in #24404)
Warn when calling setState in useInsertionEffect. (@gaearon in #24295)
Ensure the reason for hydration errors is always displayed. (@gaearon in #24276)

React DOM Server

Fix escaping for the bootstrapScriptContent contents. (@gnoff in #24385)
Significantly improve performance of renderToPipeableStream. (@gnoff in #24291)

ESLint Plugin: React Hooks

Fix false positive errors with a large number of branches. (@scyron6 in #24287)
Don't consider a known dependency stable when the variable is reassigned. (@afzalsayed96 in #24343)

Use Subscription

Replace the implementation with the use-sync-external-store shim. (@gaearon in #24289)

Readme

Source

`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(<App />);

Documentation

See https://reactjs.org/

API

See https://reactjs.org/docs/react-api.html

Keywords

react

react

.css-1z04cui{margin-bottom:var(--chakra-space-4);font-size:var(--chakra-fontSizes-md);}18.1.0 (April 26, 2022)

React DOM