Subj : Re: Creating classes/namespaces on the fly from existing functions?
To   : netscape.public.mozilla.jseng
From : Shanti Rao
Date : Mon Jan 10 2005 09:43 am

> Now I do it like this:
> var x=getLibrary("foo.js");
> 
> and getLibrary returns an (module) object. (the newly created (module)
> object is passed as this to the foo.js to allow the script to decide if
> it still wants to pollute the global namespace or not)
> 
> This gets quite close to real namespaces.
> 
> Jens
> 

I like the idea of encapsulating library variables in thir own namespace. An 
interpreter would have to have two functions, since some code is intended to 
run inline:

f = getLibrary("foo.js")
includeLibrary("bar.js")

With the former, there are a few minor glitches. Consider

js>f = {Foo: function() {this.message = 'Foo'}};
js>a = new f.Foo()
[object Object]
js>a.constructor.name

The last statement returns an empty string. Compare with

js>function Bar() {this.message='Bar'};
js>b = new Bar
[object Object]
js>b.constructor.name
Bar

Shanti

.