$$.js
Get an array of all matching elements in the DOM.
Works in all modern browsers, and at least back to IE9.
/*!
* Get an array of all matching elements in the DOM
* (c) 2019 Chris Ferdinandi, MIT License, https://gomakethings.com
* @param {String} selector The element selector
* @param {Node} parent The parent to search in [optional]
* @return {Array} Th elements
*/
var $$ = function (selector, parent) {
return Array.prototype.slice.call((parent ? parent : document).querySelectorAll(selector));
};