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Month: August 2017

Mastering Asynchronous Javascript: Part 5 – Observables with RxJS

August 25, 2017 wellpaid Leave a comment

So far in this series we’ve looked at a number of way to handle asynchronous events in JavaScript: Callbacks Promises Generators Async / await In this, the final instalment of the series we’ll be looking at how observables can be used for asynchronous programming. The particular implementation of observables I’ll

javascript

Mastering Asynchronous Javascript: Part 4 – async / await

August 19, 2017 wellpaid 3 comments

Last time we talked about a new feature introduced in the ES6 language called generators. These make asynchronous programming fairly easy, but have the drawback of needing to use a module to make them work for asynchronous flow control (I showed you co) because they’re actually iterators rather than being

ES7 javascript

Mastering Asynchronous JavaScript: Part 3 – Generators

August 8, 2017 wellpaid 3 comments

Last time I showed you how promises can make asynchronous programming in JavaScript easier than using callbacks. Now I’ll show you some cutting edge JavaScript features that will make asynchronous programming a breeze. Introduction To Generators One of the more recent updates to the JavaScript language, ES6, introduced the concept

ES6 javascript

NPM Modules You Should Be Using: momentjs

August 8, 2017 wellpaid 2 comments

This is the first in a regular series which highlights some of the most useful npm modules out there. It’s easy to spend time home brewing your own solutions to problems when there are modules out there that could do all of the work for you. I hope this series

javascript npm

Mastering Asynchronous Javascript: Part 2 – Promises

August 3, 2017 wellpaid 3 comments

Last time I introduced you to asynchronous programming, and talked about JavaScripts most basic mechanism for dealing with this, callbacks. As we saw last time, code readability and easy error handling were lacking when using callbacks. In this post I will teach you about probably the most widely used solution

javascript

Javascript: var, const, let, What’s The Difference?

August 2, 2017 wellpaid Leave a comment

In The Beginning, There Was var Not so long ago, back in the days of ES5, there was only one keyword used to define a variable: var. Var has two possible types of scope: function scope and global scope. The following example demonstrates this: Variable declarations with var can trip

ES6 javascript

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