On Jul 11, 10:18 am, Jeff Watkins <[EMAIL PROTECTED]> wrote:
> Alex, I like the class definition function method with the exception
> of returning a hash. It seems like it ought to be one way or the
> other. But then, I've never had any problem just going long-hand with
> my class definitions.
Returning the hash isn't strictly necessary. You could just use:
var Person = Class.create(function() {
Class.add(this, {
// instance methods defined here
});
});
> One small quibble, I think it might be a little more clear were the
> class explicitly passed to the closure rather than using this. For
> most people, this is synonymous with an instance.
Yes, the very first version I wrote did in fact do that. I changed it
on the advice of some friends after they looked at the syntax. Perhaps
that change was for the worse. The original had syntax that looked
like:
var Person = Class.create(function(self) {
self.classMethod = function() {};
self.prototype.instanceMethod = function() {};
Class.add(self, Module);
// ...
});
On another note, I missed a rather neat usage in the original usage
Pastie.
Conditionally adding methods:
var Person = Class.create(function() {
if (someCondition) {
Class.add(this, {
// instance methods
});
} else {
Class.add(this, {
// different instance methods
});
}
});
var Person = Class.create(function() {
var methods = {
// default instance methods
};
if (someCondition) {
Object.mixin(instanceMethods, {
// nuke some methods
});
}
Class.add(methods);
});
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