, , AS3, . , . .
public function bar(param1:Dynamic, param2:Dynamic):Dynamic
{
if(Std.is(param1, Float) && Std.is(param2, Float))
doStuffWithFloats(param1, param2);
else if(Std.is(param1, String) && Std.is(param2, String))
doStuffWithStrings(param1, param2);
}