Introduction You may or may not have heard the new buzz about promises being introduced into JavaScript and if you don’t know what they are, you’re not alone. I’ll attempt to explain what they are and why you should or maybe shouldn’t care about them. First let’s understand what promises Read more…
Introduction Ever find yourself needing to do some number crunching, or create an off time rendering hook or perhaps just needing to create a separate thread for some other purpose, this is how you do it. Getting Started First things first, we need to create a separate javascript file Read more…
Introduction Implementing drag and drop in D3 (http://d3js.org/) is a pretty simple task when you know how to do it, the following is a walkthrough from setup to execution and the events along the way. Getting Started First thing we are going to want to do is setup our drag Read more…
Foreword So I was developing a Facebook application and realized that once the content was rendered inside of Facebook, I kept getting scrollbars. This was terribly annoying being that I wanted to take up more vertical space, but didn’t want the iframe to have scrollbars. Instead, I wanted the main Read more…
Forword The following javascript examples and notation demonstrate a few alternatives to well known methods for common tasks. Advanced Notation Tilde Operator The tilde operator ~ literally equates to -(n+1). For example: Large Denary Numbers Large denary numbers can be represented in short hand notation using the e operator. For Read more…
Introduction Facebook “like” buttons are pretty easy to implement – if you have a straight forward site. If you are loading your content using AJAX or some other form of delayed load, you might notice a problem if you’re not using Facebook’s iframe. FBML users have probably noticed that when Read more…
Foreword The following is a quick crash course in using jQuery. If you’ve never used jQuery before and want to know to how without reading a ton, this is the tutorial for you. Getting Started First download the latest version and include it in a page. Grab the minified version Read more…
Introduction For this example of a Command pattern, we will create a simple Interpreter object and a basic Command object and demonstrate their respective use. The Interpreter Let’s first start with the Interpreter: Ok, so what have we done here? We’ve created a basic pseudo structure with a single method Read more…
Often times JavaScript coding you’ll find yourself creating a loop and at some point in time doing some form of conditional statement. Conditions in loops have a heavy impact on the speed in which JavaScript will execute. Especially when the number of iterations is high. Take for example the following Read more…
By utilizing the var keyword as a literal, pseudo structures or pseudo namespaces can be created. JSON/Pseudo Structures: All members and methods within a pseudo structure are public. The psuedo structures are non-instantiable. To access a member of a pseudo structure, use the structureName.member or structureName.functionName() syntax. As you can Read more…