How to get GET vars in url with js

url-get-var.js

/*
Simple script that gets GET vars from the url in javascript
*/

function _getUrlVars() {
    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;
}

let $_GET = _getUrlVars();
console.log($_GET['somevar']);