ok then try this;
try{
varName;
trace('variable exists');
}catch(e:Error){
trace('variable does not exist');
}
Clinton D. Judy wrote On 01/31/2008 05:53 PM:
>
> I tried that, and it tells me the variable is undefined and cannot test
> it. Which doesn't seem to make a whole lot of sense. I tried your method
> first, and don't understand why it's not working.
>
> -----Original Message-----
> From: flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com>
> [mailto:flexcoders@yahoogroups.com
> <mailto:flexcoders%40yahoogroups.com>] On
> Behalf Of yigit
> Sent: Thursday, January 31, 2008 10:45 AM
> To: flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com>
> Subject: Re: [flexcoders] How do I test if a variable is defined?
>
> to test whether a variable exists or not
>
> if(varName)
> trace('exists');
> else
> trace('does not exist');
>
> Clinton D. Judy wrote On 01/31/2008 05:34 PM:
> >
> > No other explanation needed, really. How do I see if an
> > object/variable exists before I test other conditions of it?
> >
> > Unnecessary explanation: I use two completely separate mxml interfaces
>
> > that both use one as script file. One program is just missing some
> > information that the other one has. I'd like to keep using the same
> > script file, but it references a variable that exists in one file that
>
> > doesn't exist in the other file, and I need to make sure it exists
> > before I use it.
> >
> > Clinton Judy
> >
> > Web Developer
> >
> > Glenn O. Hawbaker, Inc.
> >
> >
>
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