React is one of the most popular JavaScript libraries for building user interfaces. In this guide, we’ll cover the basics of React and help you get started with your first React application.

What is React?

React is a declarative, efficient, and flexible JavaScript library for building user interfaces. It lets you compose complex UIs from small and isolated pieces of code called “components”.

Setting Up Your Development Environment

npx create-react-app my-app
cd my-app
npm start

This will create a new React application and start the development server.

Creating Your First Component

import React from 'react';

function Welcome(props) {
  return 
Hello, {props.name}
;
}

export default Welcome;