|
|
|
| Perl Monk, Perl Meditation | |
| PerlMonks |
Re: return a hash or undefby hobbs (Monk) |
| on Aug 03, 2009 at 20:25 UTC ( [id://785547]=note: print w/replies, xml ) | Need Help?? |
|
A) Don't return undef. Return () instead, and instead of checking for if (defined %resp), just check if (%resp). This works as long as you don't need to distinguish between a successful-but-empty return and a failure.
B) Return a hashref instead of a flattened hash, and assign the function's result to a scalar instead of a hash. Then undef, {}, and { foo => bar } are all distinguishable values (!defined $resp, !%$resp, and everything else, respectively.)
In Section
Seekers of Perl Wisdom
|
|
||||||||||||||||||||||