Re: the fastest way to test if variable is empty

If your variable is always string, I recommend you boolean() function (
http://www.w3.org/TR/xpath#function-boolean ) 
--- Dusan Zatkovsky <zatkovsky@xxxxxxxxxxxx> wrote:

> Hi all.
> 
> Can anybody tell me the fastest way, how to test, if variable contains some 
> text or number?
> 
> For now, i am using test "string-length($variable)=0", but seems not to be the 
> fastest.
> 
> Somebody tells me to use test "$variable", but with my XalanC, it seems to be 
> true everytime.
> 
> Thanks.
> 
> PS. variable can't contain nodes, it may contains only alphabetics or numbers 
> and whitespaces.
> 
> -- 
> 
> 
> S pozdravom,
> Dusan Zatkovsky
> 
> 


=====
Marian
http://www.utdallas.edu/~mgo031000/


		
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