Neither. Here is an idiom I occasionally use that does empty an array, though: 
my $width = 4;
my @in = "a".."z";
while (my @row = splice(@in, 0, $width)) {
   print "@row\n";
}
__END__
Output:
a b c d
e f g h
i j k l
m n o p
q r s t
u v w x
y z

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In reply to Re: how do foreach and while affect an array? by ysth
in thread how do foreach and while affect an array? by Anonymous Monk

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