MD4

Promise.series = promises => promises
  .reduce(
    (promise, current) => promise.then(current),
    Promise.resolve()
  )

MD4

(function(oldForEach) {
  Array.prototype.forEach = function() {
    oldForEach.apply(this, arguments);
    return this;
  };
}(Array.prototype.forEach));

[1, 2, 3]
  .forEach(item => console.log(1, item))
  .forEach(item => console.log(2, item))

MD4

var generateLolilolPassword = (chars, length) => Array
    .apply(null, { length })
    .map(() => chars[ (Math.random() * chars.length) >> 0 ])
    .join('')
  
generateLolilolPassword('azertyuiopqsdfghjklmwxcvbnAZERTYUIOPQSDFGHJKLMWXCVBN1234567890', 10) // cw49XRZWF0

MD4

var keys = [];
document.onkeyup = function(e) {
  keys.unshift(e.keyCode);
  keys = keys.slice(0, 10);
  if (keys.join(';') === [65, 66, 39, 37, 39, 37, 40, 38, 40, 38].join(';')) {
    alert('konami!');
  }
}

MD4

define(function () {
    return {

        factor: 100,

        pixi: function (value, y) {
            return value * this.factor * (y ? -1: 1);
        },

        p2: function (value) {

MD4

var slices = [
  {value: 100, color: "red"},
  {value: 33, color: "green"},
  {value: 41, color: "blue"},
  {value: 103, color: "yellow"},
  {value: 145, color: "orange"},
];

var origin = {x: 200, y: 200},
    radius = 100,

MD4

Function.prototype.bind = Function.prototype.bind || function (oThis) {
	if (typeof this !== "function") {
		throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable");
	}
	var aArgs = Array.prototype.slice.call(arguments, 1),
		fToBind = this,
		fNOP = function () {},
		fBound = function () {
			return fToBind.apply(
				this instanceof fNOP && oThis