Test Variable?

[Garrett Hylltun]

On Feb 10, 2006, at 2:47 PM, Sarah Reichelt wrote:

>> How do I test whether a variable is null or not?
>>
>
> Null as in not yet initialized?
>
> Try this:
>   if myVar is empty then ....

Null as in empty, but already initialized onOpenStack.  What I'm  
trying to accomplish is that if a text file path is sent to my .app  
on OSX, that when my program opens, it grabs the command line and  
puts it into a variable.  onOpen field needs to test if the variable  
has anything at all in it, if it does, then take the path and open  
the file and put it in the FieldEditor.

Would

if myVar is not empty then..

work?

Thanks,
-Garrett