"...We haven't learned "map" or "grep" yet..."

What does you discourage from reading the friendly manual and learning it by yourself?

Some sketch written in a hurry for your further inspiration:

#!/usr/bin/env perl

use strict;
use warnings;
use Test::More;
use Data::Dump;

my @colors   = qw(red green blue yellow pink purple brown);
my @drop     = qw(pink brown);
my @expected = qw(red green blue yellow purple);
my $regex    = join "|", @drop;
my @result   = grep {!/$regex/} @colors;

is($regex, q(pink|brown), q(Regex seems to be OK!));
is(@result, @expected, qq(Heureka!));

done_testing();

dd \@drop;
dd $regex;
dd \@colors;
dd \@result;

__END__

[download]

It's not carefully tested. And may be there is a better solution. Best regards, Karl

«The Crux of the Biscuit is the Apostrophe»

perl -MCrypt::CBC -E 'say Crypt::CBC->new(-key=>'kgb',-cipher=>"Blowfish")->decrypt_hex($ENV{KARL});'Help

In reply to Re^3: The error says the value is uninitialized, but it works anyway by karlgoethebier
in thread The error says the value is uninitialized, but it works anyway by mizducky

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