Error/Warning - what's "prettier" way of achieving purpose

Rick Measham rickm at
Sun Nov 24 14:34:11 CST 2002

At 6:34 AM +1100 25/11/02, David Dick wrote:
>print $cgi->header if (not defined $DEBUG); # slightly different, it 
>won't print the empty string ;)

The whole point of 'unless' is to remove the 'if not' syntax so even 
better would be:
print $cgi->header unless defined($DEBUG);

I would argue for using this type of snyax over ()?: because you want 
to print the header. That's the point of the line. Unless you're 

With the original line the point appears to be to test if $DEBUG is 
defined and if it isn't then print a header.

Small difference, but makes code easier to maintain.

             There are 10 kinds of people:
   those that understand binary, and those that don't.
   The day Microsoft makes something that doesn't suck
     is the day they start selling vacuum cleaners

More information about the Melbourne-pm mailing list