Hello the following code produces warnings when run with -w could I please get an explanation on how to properly and eloquently deal with and undefined array?

use strict;
use warnings;

my @array = undef;
if (@array eq undef) { print };
if (@array ne undef) { print };
foreach (@array) { print; }
map { print } @array;

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In reply to Question about foreach/iterating/verifying an undefined array by Anonymous Monk

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