Recent Features
![Page Visibility API]()
Page Visibility API
One event that's always been lacking within the document is a signal for when the user is looking at a given tab, or another tab. When does the user switch off our site to look at something else? When do they come back?
![7 Essential JavaScript Functions]()
7 Essential JavaScript Functions
I remember the early days of JavaScript where you needed a simple function for just about everything because the browser vendors implemented features differently, and not just edge features, basic features, like
addEventListenerandattachEvent. Times have changed but there are still a few functions each developer should...
Incredible Demos
![Resize an Image Using Canvas, Drag and Drop and the File API]()
Resize an Image Using Canvas, Drag and Drop and the File API
Recently I was asked to create a user interface that allows someone to upload an image to a server (among other things) so that it could be used in the various web sites my company provides to its clients. Normally this would be an easy task—create a...
![Create a Simple Slideshow Using MooTools, Part III: Creating a Class]()
Create a Simple Slideshow Using MooTools, Part III: Creating a Class
In my previous two slideshow posts, Create a Simple Slideshow Using MooTools and Create a Simple Slideshow Using MooTools, Part II: Controls and Events, I showed you how to create a slideshow using...




