 | | | Array property of MoveClip subclass problem | Array property of MoveClip subclass problem 2004-03-12 - By Pranav Verma
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Hi Ingo,
check this!
class testClass extends MovieClip {
// properties:
var test:Array = new Array();
// constructor:
function testClass() {
test=[];
test.push("hi");
onRollOver = function(){trace(test)};
}
}
Now EXPLANATION...
I am not an expert with other OOP languages but as far as AS is concern ,
multiple instances of an Array object always always refer to one array only.
so...
a= [];
b=[];
b =a;
b.push("junk");
this will add the "junk" in array 'b'.... array 'b' will be blank, ya if you
talk of Number string then it's ok . the moment you created a new var.. new
reference is created.
so in case of array u need to define the array inside the constructor so
that the flash compiler will create diff. refrence for each array objects.
otherwise all array object will refer to one ref only...( thats why in ur
example the array was appending itself on each push )
I hope it all make sense.... please revert back with queries if any.
HTH,
Pranav
> -- --Original Message-- --
> From: Ingo Weiss [mailto:ingo01@(protected)]
> Sent: Friday, March 12, 2004 11:42 AM
> To: flashcoders@(protected)
> Subject: [Flashcoders] Array property of MoveClip subclass problem
>
>
> I am having a strange problem that I finally narrowed down to
> this:
>
> In a movieClip subclass, I have a property "test" of type Array:
>
>
> class testClass extends MovieClip {
>
> // properties:
> var test:Array = new Array();
>
> // constructor:
> function testClass() {
> test.push("hi");
> onRollOver = function(){trace(test)};
> }
>
> }
>
>
>
> Now if I place 3 instances of the clip on the stage, first of all
> "test" doesn't show up in the Debugger's "variables" pane (why?).
> Then, I would expect the "test" of each instance to have one
> member, "hi". Instead, they have 3 (one for each instance, ["hi",
> "hi", "hi"])? it's as if the instances would share one property
> "test". Why is that?
>
> Thanks for any help!!
> Ingo
>
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