what is query string in javascript? code example

Example 1: js query string

const urlParams = new URLSearchParams(window.location.search);
const myParam = urlParams.get('myParam');

Example 2: get query string javascript nodejs

const querystring = require('querystring');
const url = "http://example.com/index.html?code=string&key=12&id=false";
const qs = "code=string&key=12&id=false";

console.log(querystring.parse(qs));
// > { code: 'string', key: '12', id: 'false' }

console.log(querystring.parse(url));