install react app using npm

C++
npx create-react-app my-app
cd my-app
npm startnpx create-react-app project-namenpx 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+.create-react-app my-project --use-npmnpx create-react-app umusic
npx create-react-app umusic
Source

Also in C++: