What is the difference between that and this:
class SomeClass {
private var a:Number = 3;
function SomeClass(mc:MovieClip){
var thisObj = this;
// Set a reference to "this"
mc.onRelease = function(){
thisObj.onRelease();
}
}
function onRelease(){
trace("this.a: "+this.a);
}
}
Not much, just cleaner and more convenient code. You code can be
rewritten as:
import mx.utils.Delegate;
class SomeClass {
private var a:Number = 3;
function SomeClass(mc:MovieClip){
mc.onRelease = Delegate.create(this,onRelease);
}
function onRelease(){
trace("this.a: "+this.a);
}
}
It's shorter, cleaner, less typing, and accomplishes exactly the same
thing. Except you could also do this:
mc.onRelease = Delegate.create(_root.someotherclip,onRelease);
...or...
mc.onRelease = Delegate.create(_parent._parent,onRelease);
...and so on. You could, of course, do the same thing by defining
thisObj as whatever scope you want to use, but it just seems cleaner and
easier to do it with Delegate. The only downside being passing parameters,
but that can be gotten around.
ryanm
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