Re: Optional Variables

[M.W. Koskamp]

----- Original Message ----- 
From: Evgeny Goldin (aka Genie) <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: Brett W. McCoy <[EMAIL PROTECTED]>
Sent: Friday, June 29, 2001 11:34 PM
Subject: Re: Optional Variables


> 
> > my $option = $ARGV[0] || 1;
> 
> And what if $ARGV[0] equal to 0 ? Ops ..
> 
> Remember what evaluates to FALSE :
> * "0"
> * 0
> * empty string
> * undef

my $option = defined $ARGV[0] ? $ARGV[0] : "default";