Are there any inversion of control frameworks for javascript?

Question

Are there any inversion of control frameworks for javascript?

The closest answer available on stackoverflow that I could find is here: What is the right way to wire together 2 javascript objects? . It looks like a great start, but I thought I'd be able to find something with a longer development history.

I've only used Castle Windsor myself, and I am really missing it in web-client land.

Answer 1

I started writing one that I never got around to finishing. Not sure if I ever will as the overhead probably isn't worth it. if you're interested, it's at: http://code.google.com/p/jasproject/wiki/JasFac (that's the IoC portion, the full suite is at http://code.google.com/p/jasproject/)

The mocking library is fairly complete (no expectations though, at the moment i just use assertions on the mocks/stubs) but the unit testing framework is lacking. The IoC portion is pretty complete but might have a few bugs (don't think so though)

Feel free to use it and/or contribute, I can help where you need.

EDIT: More usage can be seen in the unit tests for jasfac: https://jasproject.googlecode.com/svn/trunk/Jas.Tests/JasFacTests.js

Answer 2

I was looking for one last year and ran across squirrel-ioc. There was something I didn't like about it - I think it only supported singleton style instances.

Squirrel is an IoC container implemented in Javascript to promote the better use of architecture and patterns in browser-based Javascript applications

I started writing my own and got pretty far (constructor and setter injection, values and reference relationships, singleton support, JsUnit tests) but never really needed it in my application. I may have to check out Luke's project. For reference, here is an example of the configuration format I ended up with.

var iocConfig = {
  "a" : { Type : A },
  "b1" : { Type : B, Props : [{Name : 'Letter', Ref : "a"}]  },
  "b2" : { Type : B, Props : [{Name : 'Letter', Val : "a"}]  },
  "c2" : { Type : C, Args : [{Ref : "a"}, {Val : "a"}]  },
  "d" : { Type : D, Props : [{Name : 'Letter', Ref : "a"}]  },
  "date" : { Type : Date, Props : [{Name : 'FullYear', Val : 2008}, {Name : 'Month', Val : 0}, {Name : 'Date', Val : 1}]  },
  "array3" : { Type : Array, Args : [{Val : 3}]  },
  "number1" : { Type : Number, Args : [{Val : 1}]  },
  "string1" : { Type : String, Args : [{Val : "1"}]  },
  "s-true" : { Type : S, Singleton : true},
  "s-false" : { Type : S, Singleton : false}
};