Yes they do suffer that- it tests for truth.

Maybe I was too vague in my posting, if so I apologize.

I expect my sub to take an unforeseen number of arguments. My sub will take the arguments, discard some, and the ones that are not discarded, will be altered- and a list of the altered arguments are returned back.

An example.. 

use Lingua::Names 'is_name';
my @a = qw/andy lo1 beca cris/;

my @A = alter(@a);

sub alter {   
   my @newlist;
   for ( @_ ){
      my $name = is_name($_) or next;
      push @newlist, uc($name);
   }
   @newlist;
}

[download]

Now, how can I make this so I can use shift, maybe even a for loop with undef and last??? What might be apropriate here to make it a little more minimal? This is a little closer.. 

sub alter {   
   my @newlist;
   while ( @_ ){
      $_ = shift @_;
      my $name = is_name($_) or next;
      push @newlist, uc($name);
   }
   @newlist;
}

[download]
I'm wondering if I can just shift and push from @_ and then return the modified @_ .. using $_ ??? Maybe this is just too much coffee speaking and I need to chill out?

In reply to Re^2: using shift and $_ in loop by leocharre
in thread using shift and $_ in loop by leocharre

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