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The Unix people probably know this. I did not. So I write it down just in case I might need to use it again one day :-) Continue…

Just in time for the Euro 2008 football championship, we provide you with a service with which you will not miss a single match. Euro KickOff, which may or may not include some nice technical details. Continue…

Most Web Developers have access to broadband Internet connections — but unfortunately this does not yet reflect the type of connections many Internet users are using. Some might still be on ISDN or even on dial-up. This article is meant to discuss the idea of measuring the user bandwidth using JavaScript and serving different types of content to users depending on their connection speed. Continue…

Spring clean your CSS file(s): Get rid of selectors which are not used (any more) and save some bandwidth. With the Dust-Me Selectors Plugin from SitePoint. Continue…

This article aims to list options for developers who wish to test their Web sites on mobile devices using OS emulators and browser simulators. Continue…

With so many browser out there in the wild, working as a Web Developer certainly is not an easy job these days. Thankfully, over the last years, decent tools have been developed by bright people that make developing and debugging of code easier for the developer. But sometimes, it is not easy to keep track which tools are at a Developer’s disposal (and which are actually usable). The following article seeks to list the best tools available and quickly describing how to activate/install/use them. Continue…

After dealing with the basic modules like DOM and Event during the last couple of Agent YUI tutorials, I am now moving on to the Animation module. Continue…

In the first part of this tutorial series, we were talking about a very straight forward way of attaching events to elements in the DOM. This article will tell you how to even create our own Custom Events and trigger them. This is what the YUI guys call an “interesting moment” in your application. Continue…

In times where web sites behave more and more like web applications, with a constantly growing set of features, most likely developed with JavaScript, it is still of crucial importance that the web site responds to user actions as fast as possible. A couple of months ago, Yahoo! published a set of Exceptional Performance Rules, which - if you adhere to them - can improve the performance of your site significantly. So I had a look how these rules can help me to improve the stats for my own site, www.klauskomenda.com. Continue…

The last article in the Agent YUI series was about YAHOO.util.Event, one of the YUI core components. The other, probably even more used component is YAHOO.util.Dom, which provides helper functions for several DOM related tasks. So our mission today will be checking out these functions a little bit further. Continue…