>> but if I'm not mistaken, those were used in the AS2 days to attach a class
>> to a MovieClip
Not necessarily in this case though. In AS3 you can use things like
getDefinitionByName() or getQualifiedClassName() to dynamically reference or
dynamically instantiate an instance of a class. Since this is AS3 code, the
use would not be related to AS2. It could be used like that with dynamic class
referencing, or they may just be doing it as available metadata for some odd
reason.
An example of how I have used dynamically generated class instances is if I
have some external XML that describes an application or solution of some kind,
and I want to have the XML describewhat objects (and therefore what classes)
are created, at runtime in the Flash player. For example:
var aCoolSpriteClass:Class = getDefinitionByName("aCoolSprite") as Class;
var obj:DisplayObject = new aCoolSpriteClass() as DisplayObject;
> Note: Among other things, I changed var to const; I assume "const" was
> a better pick... No?
Yes, those would be constants, so I would declare them as const so they cannot
be modified. Constants do never change in value at runtime.
Jason Merrill
Instructional Technology Architect
Bank of America Global Learning
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