edX logo 400×400

By  on  

Recent Features

  • By
    5 Ways that CSS and JavaScript Interact That You May Not Know About

    CSS and JavaScript:  the lines seemingly get blurred by each browser release.  They have always done a very different job but in the end they are both front-end technologies so they need do need to work closely.  We have our .js files and our .css, but...

  • By
    Write Better JavaScript with Promises

    You've probably heard the talk around the water cooler about how promises are the future. All of the cool kids are using them, but you don't see what makes them so special. Can't you just use a callback? What's the big deal? In this article, we'll...

Incredible Demos

  • By
    jQuery Wookmark

    The first thing that hits you when you visit Pinterest is "Whoa, the columns are the same width and the photos are cut to fit just the way they should."  Basic web users probably think nothing of it but as a developer, I can appreciate the...

  • By
    Detect Vendor Prefix with JavaScript

    Regardless of our position on vendor prefixes, we have to live with them and occasionally use them to make things work.  These prefixes can be used in two formats:  the CSS format (-moz-, as in -moz-element) and the JS format (navigator.mozApps).  The awesome X-Tag project has...

Discussion

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