JS - Parse URL `GET` parameters from and HTTP request

parse-url-params.js

/* function parseURLParams
 * Accepts a http parameter string or grabs the one from the current URL
 * Returns a dictionary
 * Ex: '?api_key=XYZ&version=2' => { api_key: 'XYZ', version: 2}
 *
 * query: string | undefined
 */
 
function parseURLParams (query) {
	if(!query)
		query = location.search;
	var queryDict = {};
	query.substr(1).split("&").forEach(function(item) {queryDict[item.split("=")[0]] = item.split("=")[1]})
	return queryDict;
}