Category Archives: Async

Jasmine.Async: Making Asynchronous Testing With Jasmine Suck Less

Posted on August 18, 2012 by Derick Bailey

I love Jasmine. It’s a great BDD-style testing framework for browser based JavaScript, and my preferred tool for doing that kind of work. But the asynchronous testing story in Jasmine is painful at best. Jasmine’s Async Is Painful Here’s a short example of … Continue reading →

Also posted in Jasmine, jasmine-async, Javascript, Unit Testing | 23 Comments

Asynchronous Unit Tests With Mocha, Promises, And WinJS

Posted on August 17, 2012 by Derick Bailey

Before I get in to the guts of this post, you need to read Christopher Bennage’s post on how we have our Mocha test suite set up for our Win8 / WinJS project. It’s not the best setup, but it … Continue reading →

Also posted in ChaiJS, CommonJS, Javascript, MochaJS, Testing, WinJS | 11 Comments

Partially Applied Functions In JavaScript

Posted on July 20, 2012 by Derick Bailey

I’m finding myself doing more and more functional programming with JavaScript lately – especially in recent days with this WinJS project I’m working on, and the heavy use of promises that it encourages. This feels a little odd to me, … Continue reading →

Also posted in ECMAScript, Functional, Javascript, Underscore, WinJS | 8 Comments

Want To Build Win8/WinJS Apps? You Need To Understand Promises.

Posted on July 19, 2012 by Derick Bailey

If you’re not following me on Twitter, you may not know about my current project work. I’m working with Christopher Bennage and the Microsoft Patterns & Practices group to build a Windows 8, WinJS, Metro-style app with HTML, CSS and … Continue reading →

Also posted in CommonJS, Javascript, WinJS | 4 Comments

Providing Synchronous / Asynchronous Flexibility With jQuery.when

Posted on March 27, 2012 by Derick Bailey

I’ve quickly become a fan of jQuery’s Deferred / Promise features. They’ve been around for a little bit now, but I only recent started using them and they’ve helped me solve a number of problems with my asynchronous JavaScript code. … Continue reading →

Also posted in Backbone, Javascript, JQuery, Marionette | 8 Comments

TrafficCop: A jQuery Plugin To Limit AJAX Requests For A Resource

Posted on March 20, 2012 by Derick Bailey

A while back, I wrote about asynchronous template loading for Backbone applications. At the bottom of that post, I showed some code that I wrote which would limit the number of AJAX calls that are made to the server, to … Continue reading →

Also posted in Javascript, JQuery | 4 Comments

Asynchronously Load HTML Templates For Backbone Views

Posted on February 9, 2012 by Derick Bailey

UPDATE: It turns out this is a really bad idea. Don’t async fetch individual templates. In the end, having done asynchronous fetching of individual templates on a few productions apps, it’s a really bad idea. The network latency and multiple … Continue reading →

Also posted in Backbone, Javascript, JQuery, Marionette, Principles and Patterns, User Experience | 29 Comments

Rewriting My ‘Guaranteed Callbacks’ Code With jQuery Deferred

Posted on February 7, 2012 by Derick Bailey

In a previous post, I showed some code that I wrote to guarantee the execution of a callback method after a Backbone collection was loaded. Even if you added the callback after the collection had been loaded, it would run. Shortly … Continue reading →

Also posted in Backbone, Javascript, JQuery, Marionette | 4 Comments

Get A Model From A Backbone Collection Without Knowing If The Collection Is Loaded

Posted on February 3, 2012 by Derick Bailey

In working with a client recently, we ran in to a rather sticky situation. We were setting up a route to “persons/:id”, and as you would expect, we wanted to load the person in question and display the details of … Continue reading →

Also posted in Backbone, Javascript, Marionette | 1 Comment

Using HAML, SASS, JQuery And JQuery-Templates To Build An ASync Search

Posted on March 25, 2011 by Derick Bailey

In my previous post, I talked about setting up an API that let’s me search for insurance companies. My initial use of this is to create a search box on another page in the site and have JQuery call back … Continue reading →

Also posted in HAML, JQuery, SASS | 3 Comments