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Re^4: Hashes, Arrays, and Confusion -- In a bit over my head!

by Riales (Hermit)
on Mar 30, 2012 at 03:24 UTC ( #962520=note: print w/replies, xml ) Need Help??


in reply to Re^3: Hashes, Arrays, and Confusion -- In a bit over my head!
in thread Hashes, Arrays, and Confusion -- In a bit over my head!

tangent pretty much covered this, but I can expand a little bit more about the arrayref bit:

Like tangent said, the hashref $seen{$key}->{col1_vals} points to is an arrayref. To sum its contents, you can do something like this:

my $sum = 0; foreach (@{$seen{$key}->{col1_vals}}) { $sum += $_; }

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