JSFiddle - React, Tailwind, and code Playground

HTML

<a href="ajax.php?search=text&type=xxx&PAGEN_1=2">ссылка</a>

JavaScript

var link = document.querySelector('a');
link.addEventListener('click', getParam);

function getParam(e){
  e.preventDefault();
  let vSearch = getURLParam(e.target.search, 'search'),
  		vType = getURLParam(e.target.search, 'type'),
  		vPagen = getURLParam(e.target.search, 'PAGEN_1'); // тут вводим имя параметра
      
  console.log(vSearch, vType, vPagen); // text xxx 2
  
}
function getURLParam(target, name) {
  return decodeURI(target.replace(new RegExp("^(?:.*[&\\?]" + encodeURI(name).replace(/[\.\+\*]/g, "\\$&") + "(?:\\=([^&]*))?)?.*$", "i"), "$1"));
}