JSFiddle - React, Tailwind, and code Playground

HTML

<a href="/costam" class="edit">edit something</a>

JavaScript

function getUrlVars()
                        {
                            // vars should be object not ordinary array
                            var vars = {}, hash;
                            var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
                            for(var i = 0; i < hashes.length; i++)
                            {
                                hash = hashes[i].split('=');
                                //vars.push(hash[0]);
                                vars[hash[0]] = hash[1];
                            }
                            return vars;
                        }
$('.edit').click(function(e){
    e.preventDefault();
    console.log(getUrlVars());
         var test = getUrlVars()["id"];
         alert(test);
 });