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copied!<p>Using Exporter is fine for smaller projects, but if you have lots of code handling data that is internal to a module, things can get ... messy. Object-orientation is a lot friendlier for this type of thing.</p> <p>Why not construct a method to fetch this data? In fact, why not just use Moose?</p> <p>In your Example.pm, just load Moose - this gives you a constructor and destructor for free, as well as a subroutine to fetch values <em>and</em> turns on strict, etc by default. Array references have to be declared a little differently, due to how Class:MOP (The engine under the antlers of Moose) initializes attributes - you have to wrap it in a code reference (aka sub {}). You would also use Data::Dumper in the script which calls the package, instead of the package itself.</p> <p>Example.pm</p> <pre><code>package Example; use Moose; has 'exported_array' => (is => 'rw', default => sub { [ 'one', 'two', 'three' ] }); 1; </code></pre> <p>Then call this from a script:</p> <p>example.pl</p> <pre><code>#!/usr/bin/env perl use Modern::Perl '2013'; use lib '.'; use Example; use Data::Dumper; my $example = Example->new; my $imported_array_ref = $example->exported_array; my @imported_array = @{$imported_array_ref}; foreach my $element(@imported_array) { say $element; } say Dumper(\@imported_array); </code></pre> <p>I made the dereferencing really explicit in the example.pl script above... it can be much more terse by dereferencing it directly into the array:</p> <pre><code>#!/usr/bin/env perl use Modern::Perl '2013'; use lib '.'; use Example; use Data::Dumper; my $example = Example->new; my @imported_array = @{$example->exported_array}; foreach my $element(@imported_array) { say $element; } say Dumper(\@imported_array); </code></pre> <p>I think a <em>lot</em> more Perl programmers would embrace Moose if there were more simple examples that show how to get simple things done. </p> <p><a href="https://metacpan.org/pod/Moose%3a%3aManual/" rel="nofollow" title="The Official Moose Manual">The Official Moose Manual</a> is excellent, but it was really written for those who are already familiar with OOP.</p>

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