Because you're effectively using a hash slice.

What that does is the @ in front of the hash presents its keys. Then if any of the keys match any elements in the array, those values are returned:

my %h = (1 => 'a', 2 => 'b', 3 => 'c');
my @a = (2, 3);

my @b = @h{@a};

print "$_\n" for @b;

__END__
b
c

[download]

-stevieb

In reply to Re: Using a hash with the @ sigil by stevieb
in thread Using a hash with the @ sigil by 1nickt

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