JSFiddle - React, Tailwind, and code Playground

by Patrick Hund

HTML

<span id="url" >old url</span><br />
<span id="newurl">new url</span>

JavaScript

$(function() {
    var url = "http://my.com/page?x=y&z=1&w=34";

    var regEx = /([?&]z)=([^#&]*)/g;
    var newurl = url.replace(regEx, '$1=newValue');

    $('#url').text(url);
    $('#newurl').text(newurl);
});