Todd Zebert toddzebert

An Iterable is an object that has a method Symbol.iterator which is factory for Iterators. Native Iterables include which include Arrays, Stings, Set & Map (but not weak variants).

An Iterator includes a "pointer" for traversing an Iterable in the form of a next method.

	// requires https://gist.github.com/toddzebert/135578e9faf006b73656c360b7e616e2
	// requires https://gist.github.com/toddzebert/c9d75cd901897e7363bf142a90a2b2a1
	// requires https://gist.github.com/toddzebert/bcd849a48676256eef8a795f8f03cfff
	// requires https://gist.github.com/toddzebert/43c308b0e0f559b47ac487dcc8c06924
	// requires https://gist.github.com/toddzebert/5d279f8a2104bef103273e5177ae3599
	var data = { id: 4 };
	getAuth(data)
	.then(getProfile)
	.then(getFeed)
	.then(getPosts)

	// requires https://gist.github.com/toddzebert/996e297c1c081d19378eaf5f29dc75bb
	// requires https://gist.github.com/toddzebert/ec087188b813e6490abab2cf0feb2ad5
	var getAds = function (data) {
	return new Promise( (resolve, reject) => {
	Promise.race([getAd(data), getAd(data), getAd(data)])
	.then(result => {
	data.ads = result; resolve(data);
	})
	.catch(result => {
	data.ads = result; reject(data);

	// requires https://gist.github.com/toddzebert/996e297c1c081d19378eaf5f29dc75bb
	var getAd = (function (dat) {
	let i = 1;
	// create a closure
	const ad = function () {
	return 'Ad#' + i++;
	};
	return function (dat) {
	return simAsync(ad);
	};

	// requires https://gist.github.com/toddzebert/996e297c1c081d19378eaf5f29dc75bb
	// requires https://gist.github.com/toddzebert/9dc7de3ed0195dfefcc533bcba426930
	var getPosts = function (data) {
	return new Promise( (resolve, reject) => {
	const getAllPosts = data.feed.map(post => getPost(post));
	Promise.all(getAllPosts)
	.then(result => {
	data.posts = result; resolve(data);
	})
	.catch(result => {

	// requires https://gist.github.com/toddzebert/996e297c1c081d19378eaf5f29dc75bb
	var getPost = function (data) {
	// create a closure
	const post = function () {
	return data + 100;
	};
	return simAsync(post);
	};

	// requires https://gist.github.com/toddzebert/996e297c1c081d19378eaf5f29dc75bb
	var getFeed = function(data) {
	// create a closure
	const feed = function () {
	const a = [];
	for (let i = randInt(4, 2); i; i--) {
	a.push(randInt(90, 1));
	}
	data.feed = a;
	return data;

	// requires https://gist.github.com/toddzebert/996e297c1c081d19378eaf5f29dc75bb
	var getProfile = function(data) {
	// create a closure
	const prof = function () {
	data.profile = "Profile"; return data;
	};
	return simAsync(prof);
	};

	// requires https://gist.github.com/toddzebert/996e297c1c081d19378eaf5f29dc75bb
	var getAuth = function(data) {
	// create a closure
	const auth = function () {
	data.auth = "Authorized"; return data;
	};
	return simAsync(auth);
	};

	// requires https://gist.github.com/toddzebert/b4465de41b0f8d317d7a685604983c36
	var simAsync = function(fulfillment, rejection) {
	return new Promise( (resolve, reject) => {
	const delay = randInt(400, 200);
	setTimeout(() => { resolve(fulfillment()); }, delay);
	});
	};