it should be fine, but i come from a background where catching an error is
not considered a sollution.
its an error and you should deal with it, not a very real and potential use
case
On 7/19/07, Sunil Jolly <[EMAIL PROTECTED]> wrote:
If you use the try, catch method that shouldn't be a problem.
-------------------
try {
removeChild(myObject);
} catch (e:Error) {
//object doesn't exist as a child, do nothing
}
---------------------
That should fail unless myObject has been added to the stage.
Or am I missing something here?
Sunil
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Johannes
Nel
Sent: 19 July 2007 15:40
To: flashcoders@chattyfig.figleaf.com
Subject: Re: [Flashcoders] Object Detection AS3
the problem with your approach is that if the object does exist but is
not
on the display tree it will fail
On 7/19/07, Sunil Jolly <[EMAIL PROTECTED]> wrote:
>
>
> This works for me:
>
> -----------------------------
>
> var myObject:Object;
>
> if (myObject) {
> removeChild(myObject);
> }
>
> -------------------------------
>
> Another method would be to catch the error:
>
> -----------------------------
>
> try {
> removeChild(myObject);
> } catch (e:Error) {
> //do nothing
> }
>
> ------------------------------
>
> Or you can compare it to "null":
>
> ------------------------------
>
> if (myObject != null) {
> removeChild(myObject);
> }
>
> ------------------------------
>
> Sunil
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
Michael
> Trim
> Sent: 19 July 2007 13:58
> To: flashcoders@chattyfig.figleaf.com
> Subject: [Flashcoders] Object Detection AS3
>
> Hi Flashcoders,
>
> Learning AS3 in the deep end at the moment, so excuse the questions if
> too newb for this list.
>
> In AS2 I may have done something like the following.
>
> _1___________________________________
>
> if(myObject){
>
> myObject.removeMovieClip();
>
> }
>
> this.attachMovie("MyObject","myObject",1);
> _____________________________________
>
>
> What would similar code look like in AS3? As
>
>
> _2____________________________________
>
> removeChild(myObject);
> _____________________________________
>
> fails if myObject doesn't exist yet as does
>
>
> _3___________________________________
>
> if(myObject)
> _____________________________________
>
> Which I don't think you can do anyway?
>
> It's the last one I'm really interested in, how do you detect if
> something exists?
>
> Thanks
>
> Michael
> _______________________________________________
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--
j:pn
http://www.memorphic.com/news/
_______________________________________________
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Brought to you by Fig Leaf Software
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_______________________________________________
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--
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http://www.memorphic.com/news/
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Brought to you by Fig Leaf Software
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