actionscript (flex): how to know whether a property of object exists (or defined)?

Question

I am a Java developer who tries Flex. Here is my problem:

I behave actionScript objects as hashmap but when the object do not have the property it gives exception: No su

Answer 1

hasOwnProperty() doesn't work correctly with inheritance, static properties, or dictionaries.

You should use

if ("propertyName" in myObject)

instead.