reactjs start

npx create-react-app my-app
cd my-app
npm start//With node and npm already installed for basic start

npx create-react-app my-app-name

// if you want to use npm 

npx create-react-app my-app-name --npm

//if you want to use typescript 

npx create-react-app my-app-name --template typescript

yarn start // app will be hosted on localhost:3000

/* start making changes at ./my-app-name/src/App.js
	React documentation: https://reactjs.org/docs/hello-world.html
*/npx create-react-app my-appcd my-appnpm startCopyReactDOM.render(  
    <Hello />,   
    document.getElementById("root")  
);
npm start