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By David Walsh on April 27, 2020

Recent Features

By David WalshNovember 2, 2015
JavaScript Promise API
While synchronous code is easier to follow and debug, async is generally better for performance and flexibility. Why "hold up the show" when you can trigger numerous requests at once and then handle them when each is ready? Promises are becoming a big part of the JavaScript world...
By David WalshNovember 21, 2011
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?

By David WalshApril 3, 2009
Use Custom Missing Image Graphics Using jQuery
Yesterday I posted an article about how you can use your own "missing image" graphics when an image fails to load using MooTools. Here's how to do the same using jQuery. The jQuery JavaScript Note that I've provided two examples. If you want to get...
By David WalshSeptember 25, 2012
Custom Scrollbars in WebKit
Before each of the browser vendors we like was providing unique CSS controls, Internet Explorer was setting the tone. One such example is IE's early implementation of CSS filters. Internet Explorer was also the first browser that allowed developers to, for better or worse, customize...