How do I create a new array in memory?

Buckaroo Buddha has asked for the wisdom of the Perl Monks concerning the following question: ⭐ (arrays)

Hi there,
I'm trying to figure out how to make sure each array claims its own memoryspace.

How do I do that?

    while <> {
         @record = split(',',$_);
         $key = shift(@record);
         $list{$key} = \@record;
    }
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Originally posted as a Categorized Question.