This content originally appeared on DEV Community and was authored by Muhammed Shamal PV

Introduction

Introduce what React.js is, its popularity, and why beginners should learn it.

1. What is React.js?

• Definition: Explain React.js as a JavaScript library for building user
  interfaces, primarily for single-page applications.

• Beautifull touch by facebook (now our meta);

1. Why Learn React.js?

• Popularity and Demand: Mention its widespread use in the industry.

• Performance: Touch on its efficient rendering with the virtual DOM.

Friends we can stope theory && startup with React JS

1. Setting Up Your Environment

Make sure installed Node js in your system

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


1. Start By our Favor Hello World;

You can start editing from App.js file (sub main of a main file which is Index.js);

`// src/App.js
import React from ‘react’;

function App() {
return (

Hello, World!

);
}

export default App;
`

Happy Coding;

This content originally appeared on DEV Community and was authored by Muhammed Shamal PV