How to check whether an AS3 "Object" variable is completely empty?

Question

In Actionscript 3.0, how do I check if var myObject:Object is functionally identical to {}?

I take it I can't do ...

if (myObject == {}) {
  // etc
}

... because Objects are reference types, right?

Answer 1

Check that it exists at least one field :

function isEmptyObject(myObject:Object):Boolean {
 var isEmpty:Boolean=true;

 for (var s:String in myObject) {
   isEmpty = false;
   break;
 }

 return isEmpty;
}