Node:Slices,
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Slices
It turns out you can slice hashes just like you were able to slice arrays.
This can be useful if you need to extract a certain set of values out of a
hash into a list.
use strict;
my %table = qw/schmoe joe smith john simpson bart/;
my @friends = @table{'schmoe', 'smith'}; # @friends has qw/joe john/
Note the use of the @ in front of the hash name. This shows that we
are indeed producing a normal list, and you can use this construct in any
list context you would like.
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