Re: The error says the value is uninitialized, but it works anyway

[karlgoethebier]

A different solution AKA TMTOWTDI using Set::Scalar:

#!/usr/bin/env perl

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

my @colors   = qw(red green blue yellow pink purple brown);
my @drop     = qw(pink brown);
my @expected = qw(red green blue yellow purple);

my $colors = Set::Scalar->new(@colors);

print qq(\@colors = );
dd @colors;

print qq(\@drop = );
dd @drop;

print  qq(\@expected = );
dd @expected;

$colors->delete(@drop);

my @result = $colors->members;

print qq(\@result = );
dd @result;

is(@result, @expected, qq(Dropping members @drop from \@colors));

done_testing();

print qq(\@colors = );
dd @colors;

__END__

Karls-Mac-mini:Desktop karl$ ./mizducky_02.pl
@colors = ("red", "green", "blue", "yellow", "pink", "purple", "brown"
+)
@drop = ("pink", "brown")
@expected = ("red", "green", "blue", "yellow", "purple")
@result = ("purple", "red", "yellow", "green", "blue")
ok 1 - Dropping members pink brown from @colors
1..1
@colors = ("red", "green", "blue", "yellow", "pink", "purple", "brown"
+)

Best regards, Karl