const $$ = document.querySelectorAll.bind(document); Node.prototype.on = window.on = function (name, fn) { this.addEventListener(name, fn); } NodeList.prototype.__proto__ = Array.prototype; NodeList.prototype.on = NodeList.prototype.addEventListener = function (name, fn) { this.forEach(function (elem, i) { elem.on(name, fn); }); } // autocomplete autocomplete($$('#address'), $$('#lat'), $$('#lng'))