If the undef has a significant meaning, I define it explicitly to make the code as clear as possible. Otherwise, I spend my keystrokes elsewhere. For example: 
my $found = undef;
foreach my $candidate (@candidates) {
  if ( good($candidate) ) { 
    $found = $candidate; last;
  }
}
if (defined $found) {
  print "Found a good candidate: $found\n";
}

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-- Time flies when you don't know what you're doing

In reply to Re: Perl Style: Is initializing variables considered taboo? by FloydATC
in thread Perl Style: Is initializing variables considered taboo? by ait

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