Articles by Dan Wellman

Dan Wellman is an author and web developer based in the UK. He specialises in jQuery and JavaScript in general

An Introduction to Underscore.js – Part 2 Array-like collections

In part one we looked at a few of the useful array methods that Underscore provides for us. In this part of the tutorial we're going to take a look at some of the syntactic sugar that Underscore gives us to work with array-like collection. An array-like collection is something similar to array in that it is a collection of things as opposed to a single value, but they lack some of the things that arrays possess, such as a length property. We’ll be using the following JavaScript collections in the examples...

An Introduction to Underscore.js – Part 1 Arrays

Underscore.js is a tiny JavaScript utility library that makes working with some of the common data structures used in JavaScript much easier. Minified and GZipped it weighs in at less than 4Kb and where possible it delegates functionality to native browser implementations for performance. It has no other dependencies and so adds very little overhead to your total script assets. It can be used on the client or server with equal ease. Using Underscore is extremely easy; it isn’t tightly bound to the...

Responsive Widgets

Responsive design is a hot topic of web development these days, and with a simple (and now well supported) way of handling the ‘one site for all clients’ model (and I mean clients as in browsers/platforms/devices, not the people that give you money in return for a web site) it should well be. Redirecting mobile users to /m/ or some other cut-down area of your site is becoming a technique of the past. Using collections of utilities, such as the excellent 320&up, makes building responsively much...

Switch on With jQuery’s New Event Methods

The latest version of jQuery, version 1.7.1 at the time of writing, has completely overhauled its event system, giving us just two new methods to replace all existing event methods such as bind(), live() or delegate(). Event handling has been a core part of jQuery for a long time, but over the years the jQuery event landscape has flourished and grown, with successive releases increasing the number of methods for handling events. The new event methods on() and off() condense these different methods...

New methods in jQuery 1.6

jQuery is an actively-developed JavaScript library with a fairly rapid release cycle. As well as general enhancements, performance tweaks and bug fixes, new methods are frequently added to the library. In this article we’ll take a look at the new methods that have been added to the 1.6+ release and some of the enhancements. Delaying the ready event with the holdReady() method ... The holdReady() method is used to delay the firing of jQuery’s ready event, a cornerstone event which is popularly...
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