I can't believe no one's added this yet. 
use strict;
use Quantum::Superpositions;

my @a = qw(cat dog monkey);
my @b = qw(cat dog);
print map { $_ eq any(@b) ? () : ($_) } @a;

[download]
/s

In reply to Re: Reducing array by educated_foo
in thread Reducing array by hotshot

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