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Category Archives: ecmascript

>Firebug 1.2 beta 2 for Firefox 3.0

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On the Firebug blog, an announcement is posted about the release of Firebug 1.2 beta 2. It’s compatible with Firefox 3.0 RC, but not with Firefox 2.0.

For the uninitiated, Firebug is a Firefox extension that provides a host of web development tools, such as various inspectors, a JavaScript debugger, etc.

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>WebKit (Safari) gets a new JavaScript engine: SquirrelFish

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On “Surfin’ Safari“, the WebKit blog (WebKit being the engine for Apple‘s Safari browser) an new JavaScript engine has been announced. It’s called SquirrelFish.

While the current JavaScript engine (in Safari 3.1) is an interpreter, the new one is based on bytecode execution, increasing the possibilities for performance improvements. Already the WebKit developers are claiming a 50% improvement over the production release of Safari, version 3.1.

Although the fish logo is funny, I find it hard to associate it with speed in any way…

 

>Smooth web image zooming with FancyZoom

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FancyZoom is a JavaScript library for zooming into images on a web page. It looks really well, zooming images smoothly when you click on them. And then when they show, they get a shadow effect applied.

The library works with most modern browsers: (Mobile) Safari, Firefox, IE6/7 and Opera are reportedly supported, but no word of Konqueror (KHTML). See it in action on here:

FancyZoom is free for non-commercial use. To use it commercially, the author asks $39 per site.

FancyZoom 1.1 comes with for 2 JavaScript files (34 KB) and 15 PNG image files (100 KB), which sums up to 134 KB. With current broadband connections it should not be a problem in itself, but it may add up to the total download size for a web page, especially for first-time visitors. Note that a compression tool like YUI Compressor may tighten the file sizes a bit.

 
 

>Ajax Performance

>Here’s a great blog about client-side JavaScript and CSS: Ajax Performance. Some articles of interest:

Interesting stuff!

 
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Posted by on 24 March 2008 in ajax, css, ecmascript, javascript, performance