how to add react bootstrap code example

Example 1: add bootstrap to react

1.run commnad in cmd
npm install bootstrap --save

2.after install add this to index.js
import 'bootstrap/dist/css/bootstrap.min.css';

Example 2: import bootstrap react

import 'bootstrap/dist/css/bootstrap.css';// Put any other imports below so that CSS from your// components takes precedence over default styles.Copy

Example 3: install bootstrap in react

//Install
npm install bootstrap popper jquery

//Import 
import 'bootstrap/dist/css/bootstrap.css'
import 'bootstrap/dist/js/bootstrap.bundle'

Example 4: add bootstrap to react app

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css"
   integrity="sha384-9gVQ4dYFwwWSjIDZnLEWnxCjeSWFphJiwGPXr1jddIhOegiu1FwO5qRGvFXOdJZ4" crossorigin="anonymous">