sylvainpolletvillard

(function (globals, factory) {
	if (typeof define === 'function' && define.amd) define(factory); // AMD
	else if (typeof exports === 'object') module.exports = factory(); // Node
	else globals['observe'] = factory(); // globals
}(this, function () {

	var ARRAY_MUTATOR_METHODS = ["pop", "push", "reverse", "shift", "sort", "splice", "unshift"];

	return function observe(o, notify, signature) {

sylvainpolletvillard

// 1) it is dangerous to have a `constructor` property, but not forbidden

function Car(model){ 
   this.model = model; 
   this.speed = 0; 
} 

function Car2(model, constructor){ 
   this.model = model; 
   this.constructor = constructor; 

sylvainpolletvillard

function getPermutations(arr){	
	var permutations = [];
	(function _(stack, rest){		
		rest.length 
		? rest.map((el, i) => _([...stack, el], rest.filter((x,j) => i!=j)))
		: permutations.push(stack)
	})([], arr);
	return permutations
}

sylvainpolletvillard

/**
 * FORKED FROM: https://gist.githubusercontent.com/remy/370590/raw/0ade67d1b83b31c8eab1acc1f354ce425d290377/details.js
 */
(function (window, document) {
	if ('open' in document.createElement('details')) return; // no polyfill necessary

	var addEvent = function (el, type, fn) {
		if (el && el.nodeName || el === window) {
			if (document.addEventListener) {
				el.addEventListener(type, fn, false);

sylvainpolletvillard

function formatDate(value, format) {
		
  var date = value && value instanceof Date ? value : new Date(value);
  return format
  	.replace("YYYY", date.getFullYear().toString())
  	.replace("YY", date.getFullYear().toString().substr(2, 2))
  	.replace("MM", (date.getMonth() + 1).toString().replace(/^(\d)$/, '0$1'))
  	.replace("M", (date.getMonth() + 1).toString())
  	.replace("DD", date.getDate().toString().replace(/^(\d)$/, '0$1'))
  	.replace("D", date.getDate().toString())

sylvainpolletvillard

function getAllPropertyNames(o){ return o ? Object.getOwnPropertyNames(o).concat(getAllPropertyNames(Object.getPrototypeOf(o))) : [] }

Object.prototype.getAllPropertyNames = function(){ return getAllPropertyNames(this) }

sylvainpolletvillard

f=_=>!_||_*f(~-_)

sylvainpolletvillard

class Hurray extends Array {
	forEach(callback){
		super.forEach.call(this, (...args) => callback(Hurray.iterator(...args)));
		return this; // make forEach chainable
	}

	every(callback){ return super.every.call(this, (...args) => callback(Hurray.iterator(...args))) }
	filter(callback){ return super.filter.call(this, (...args) => callback(Hurray.iterator(...args))) }
	find(callback){ return super.find.call(this, (...args) => callback(Hurray.iterator(...args))) }
	findIndex(callback){ return super.findIndex.call(this, (...args) => callback(Hurray.iterator(...args))) }

sylvainpolletvillard

function debounce(func, wait = 20, options) {
	options = Object.assign({
		leading: false,
		trailing: true,
		throttle: false
	}, options);

	let timeout, isWaiting = false;

	return function debounced(...args) {

sylvainpolletvillard

class EventEmitter extends Map {        
    on (e,f){ this.set(e, [...this.get(e)||[], f]) }
    off(e,f){ this.set(e, (this.get(e)||[]).filter(x => f && x !== f)) }
    emit(e,...a){ (this.get(e)||[]).map(f => f(...a)) }
}

// minified classless fit-in-a-tweet version
E=(M=new Map,_=e=>M.get(e)||[])=>({on(e,f){M.set(e,[..._(e),f])},off(e,f){M.set(e,_(e).filter(x=>f&&f!==x))},emit(e,a){_(e).map(f=>f(a))}})

// Usage example: