CODE EXAMPLE FOR JAVASCRIPT

Export CSV in React

//npm i react-csv

import {CSVLink, CSVDownload} from 'react-csv';

const csvData =[
  ['firstname', 'lastname', 'email'] ,
  ['John', 'Doe' , 'john.doe@xyz.com'] ,
  ['Jane', 'Doe' , 'jane.doe@xyz.com']
];
<CSVLink data={csvData} >Download me</CSVLink>
// or
<CSVDownload data={csvData} target="_blank" />