React is a JavaScript library used to build interactive user interfaces, especially for websites and web applications.

React helps you build websites using reusable pieces called components.

1. Install React

The easiest way to start a new React project is with Vite.

Open your terminal and run:

npm create vite@latest my-react-app cd my-react-app npm install npm run dev

Enter fullscreen mode

Exit fullscreen mode

Choose React → JavaScript when prompted. Then open the local URL displayed in your terminal, usually http://localhost:5173/ .

2.Your first React component

Create or replace the code in src/App.jsx:

function App () { return ( < div > < h1 > Hello, Sajin Joe! </ h1 > < p > Welcome to React.…