Advanced

Sacrificial Lambda

Dynamically binding event handlers to content that has been ajaxed in with $.load without repeating yourself can be tricky. Lambda functions help you to not repeat yourself as much. jQuery uses lamdba functions everywhere, so if you're familiar with jQuery, you should be familiar with the syntax of lambda functions. In this example, the ajaxed-in […]

Selecting Elements by Properties and DOM Expandos

Sometimes it is very convenient to store information on an element by using custom properties (DOM Expandos). For example, I use DOM Expandos in my Mouse Wheel plugin to store an array of handler methods (_mwHandlers) along with a method (_mwHandler) to call all those handlers when the mouse wheel is used. Storing these methods […]

A Plugin Development Pattern

I've been developing jQuery plugins for quite a while now, and I've become rather comfortable with a particular style of plugin development for my scripts. This article is meant to share the pattern that I've found especially useful for plugin authoring. It assumes you already have an understanding of plugin development for jQuery; if you're […]

Working with Events, part 2

In my last article, I described the common problem of events seemingly ceasing to work for new elements added to a document, whether by some form of ajax or by DOM modification. We examined one way to overcome the problem: Event Delegation. With event delegation, we bind the event handler to a containing element that […]

Peeling Away the jQuery Wrapper and Finding an Array

If you haven't poked around under the hood of jQuery, you might not be aware that when you pass the jQuery function an expression or DOM element it places these elements (or, possibly a single element) into an object, and then this object is returned so that it can be chained. Without getting into the […]

Implementing Prototype’s Array Methods in jQuery

One of the biggest concerns I've heard mentioned from users of the Prototype library about jQuery is the lack of support for various array methods. The robust features Prototype provides for arrays is of great benefit to developers that do a lot of array manipulation in their JavaScript. However, I find that after moving to […]