Adding additional Minifiers e.g. UglifyJS?

[Dave Walker]

Hi, haven't seen any information about doing this. We've seen some significant improvements in minification with using UglifyJS as part of our minification steps for other parts of our site.

[Alex Ullrich]

If you look at the coffeescript or hogan preprocessors you will see how we include javascript as an embedded resource and execute it using either jurassic or a wrapper around IE's javascript engine.

https://github.com/jetheredge/SquishIt/blob/master/SquishIt.CoffeeScript/Coffee/CoffeescriptCompiler.cs

https://github.com/jetheredge/SquishIt/blob/master/SquishIt.MsIeCoffeeScript/Coffee/CoffeescriptCompiler.cs

From here it is pretty easy to implement your own IJavaScriptMinifier

You can then register it globally using the following somewhere in App_Start:

Bundle.ConfigureDefaults().UseMinifierForJs(new MyUglifyMinifier());

This is not included in the framework assembly because both techniques bring pretty heavy dependencies.  If you want to start an issue on github to see if there is a lot of demand for this I can keep an eye on it - it may make sense to have different minification packages available on NuGet similar to what we have for preprocessors. 

[Christian White]

http://www.scriptcompress.com/JavaScript-Packers.htm minifies like uglifyJS, plus it compresses, packs and obfuscates JavaScript