how to identify parameters in a url using javascript code example

Example 1: get parameter from the actual url javascript

// https://testsite.com/users?page=10&pagesize=25&order=asc
const urlParams = new URLSearchParams(window.location.search);
const pageSize = urlParams.get('pageSize');

Example 2: get parameters from url

www.test.com/t.html?a=1&b=3&c=m2-m3-m4-m5