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onChange Listener on "Number"

Is it possible to create a listener on Number object and monitor the number onChange? Something like

var listener:Object = new Object();
listener.onChange = function():Void {
    trace("number changed");
}

var myNumber:Number = new Number();
myNumber.addListener(listener);

myNumber = 5; // this will fire the on change event and trace "number changed"
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ASKER CERTIFIED SOLUTION
Avatar of Aneesh Chopra
Aneesh Chopra
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ASKER

superb! thnx much!