Since more and more people are using ajax and as such javascript/ecmascript, you as a developer/designer need tools to make it through the day. Here are some that I like to use:

• jsmin: compresses javascript
• YUICompressor: compresses javascript. I’ve also written an article on how to integrate it in Visual Studio: Compressing and obfuscating javascript and css files with YUICompressor in Visual Studio
• jsbeautyfier: “uncompresses” javascript (handy when you have a minified version of a script and want it to become more readable)
• jslint: The javascript Code Quality Tool

Grz, Kris.