how to start react js app code example

Example 1: react create app

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

Example 2: how to start react project

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

Example 3: new create react app

npx create-react-app my-app
cd my-app
npm start
//Note:npx on the first line is not a typo — 
//it’s a package runner tool that comes with npm 5.2+.