JavaScript CSS Helpers

By  on  

I spend a good amount of time looking at JavaScript framework source code. Regardless of which frameworks you have allegiance to, you can learn an awful lot by looking under the hood of widely used code collections. One of many handy snippets can be found within the MooTools source code: functions to camelize and hyphenate strings so that your own min framework can accept either form of CSS setter or getter. Here are the functions in all of their glory.

The JavaScript

As you could probably guess, this task is best accomplished with regular expressions:

function camelize(str) {
	return (str + "").replace(/-\D/g, function(match) {
		return match.charAt(1).toUpperCase();
camelize("border-bottom-color"); // "borderBottomColor"

function hyphenate(str) {
	return (str + "").replace(/[A-Z]/g, function(match) {
		return "-" + match.toLowerCase();
hyphenate("borderBottomColor"); // "border-bottom-color"

A couple of really handy JavaScript String to corresponding String format functions. Instead of expecting strings in only one format, your mini library can now accept both!

Track.js Error Reporting

Upcoming Events

Recent Features

  • 5 HTML5 APIs You Didn’t Know Existed

    When you say or read "HTML5", you half expect exotic dancers and unicorns to walk into the room to the tune of "I'm Sexy and I Know It."  Can you blame us though?  We watched the fundamental APIs stagnate for so long that a basic feature...

  • CSS Gradients

    With CSS border-radius, I showed you how CSS can bridge the gap between design and development by adding rounded corners to elements.  CSS gradients are another step in that direction.  Now that CSS gradients are supported in Internet Explorer 8+, Firefox, Safari, and Chrome...

Incredible Demos

  • Face Detection with jQuery

    I've always been intrigued by recognition software because I cannot imagine the logic that goes into all of the algorithms. Whether it's voice, face, or other types of detection, people look and sound so different, pictures are shot differently, and from different angles, I...

  • Duplicate the jQuery Homepage Tooltips

    The jQuery homepage has a pretty suave tooltip-like effect as seen below: The amount of jQuery required to duplicate this effect is next to nothing;  in fact, there's more CSS than there is jQuery code!  Let's explore how we can duplicate jQuery's tooltip effect. The HTML The overall...


  1. dvdrtrgn

    That code is nice and purdy.
    I do loves me some concision.

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!