class resolve { private var a : Number; private var b : Number = 0; private var c : Number = null; private var d : Number = undefined; function __resolve (name) { return ("undefined name: " + name); } } /* IDE var t = new resolve(); trace(t.a); trace(t.b); trace(t.c); trace(t.d); */ /* TEACE undefined name: a 0 null undefined */