pbojinov

Two way iframe communication

The main difference between the two pages is the method of sending messages. Recieving messages is the same in both.

Parent

Send messages to iframe using iframeEl.contentWindow.postMessage Recieve messages using window.addEventListener('message')

iframe

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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javierarques

Protractor API

http://angular.github.io/protractor/#/api

Note: Most commands return promises, so you only resolve their values through using jasmine expect API or using .then(function()) structure

Based on this post: https://spagettikoodi.wordpress.com/2015/01/14/angular-testing-cheat-sheet/ by @crystoll

Control browser

browser.get('yoururl'); // Load address, can also use '#yourpage'

JamieMason

Group Array of JavaScript Objects by Key or Property Value

Implementation

const groupBy = key => array =>
  array.reduce((objectsByKeyValue, obj) => {
    const value = obj[key];
    objectsByKeyValue[value] = (objectsByKeyValue[value] || []).concat(obj);
    return objectsByKeyValue;

LayZeeDK