Websites/browserbench.org/Speedometer/resources/todomvc/vanilla-examples/vanillajs/js/helpers.js

(function (window) {
    'use strict';

    // Cache the querySelector/All for easier and faster reuse
    window.$ = document.querySelectorAll.bind(document);
    window.$$ = document.querySelector.bind(document);

    // Allow for looping on Objects by chaining:
    // $('.foo').each(function () {})
    Object.prototype.each = function (callback) {
    for (var x in this) {
    if (this.hasOwnProperty(x)) {
    callback.call(this, this[x]);
    }
    }
    };
})(window);