It is indeed bad coding practice, unless the following behaviour is actually desired:
  
my @l = (1, 2, 3, 0, 5, 6);
while (my $x = shift @l) { 
  print "$x ";
}

## OUTPUT ##

1 2 3

[download]
The correct idiom is:
  
my @l = (1, 2, 3, 0, 5, 6);
while (@l) { 
  my $x = shift @l;
  print "$x ";
}

[download]
   MeowChow                                   
               s aamecha.s a..a\u$&owag.print

In reply to (MeowChow) Re2: When does $_ get used? by MeowChow
in thread When does $_ get used? by elbie

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