Simple method for parsing query params from a URL into a hash object.

javascript-parse-query-string

/**
 * Creates a hash object of all the URL query string params.
 *
 * @returns {{}}
 */
function getUrlVars() {
    var vars = {};
    var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(m, key, value) {
        vars[key] = value;
    });
    return vars;
}