React Tutorial

Learn React

[+: React is a JavaScript library for building user interfaces.

Formula

React is used to build single - page applications.

React allows us to create reusable UI components. Start learning React now ❯ 🏁

Our "Show React" tool makes it easy to demonstrate React. It shows both the code and the result.

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

function Hello() {
return (

Formula

< h1 > Hello World!</h1 >

);
}

createRoot(document.getElementById('root')).render( <Hello />

);

Example »

Many chapters in this tutorial end with an exercise where you can check you level of knowledge.

Test your React skills with a quiz.

This is an optional feature. You can study at W3Schools without creating an account.

React Introduction

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React•React Core

[+: React is a JavaScript library for building user interfaces.

Formula

React is used to build single - page applications.

React allows us to create reusable UI components. Start learning React now ❯ 🏁

Our "Show React" tool makes it easy to demonstrate React. It shows both the code and the result.

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

function Hello() {
return (

Formula

< h1 > Hello World!</h1 >

);
}

createRoot(document.getElementById('root')).render( <Hello />

);

Example »

Many chapters in this tutorial end with an exercise where you can check you level of knowledge.

Test your React skills with a quiz.

This is an optional feature. You can study at W3Schools without creating an account.

React Introduction