hey how to create unsigned arrays with keys in actionscript 3?
in php its simple:
array('key' => 'val');
in ac3 you can create unsigned arrays like that:
['val'] ['key': 'val'] // breaks
An Object instance, because it is a dynamic class, can contain dynamic properites which works as a sort of associative array.
Notice that the use of  with an object is actually a way to access and define properties named like the string passed: