From: Bryson Smith <bryson@...>
Date: 2009-01-29T04:07:31+09:00
Subject: "adding" two hashes

Hi,

I'm wondering if it is possible to "add" the values of two hashes
together.  Suppose I had:

hash1 = {:key_one=>100, :key_two=>200}
hash2 = {:key_two=>300, :key_three=>400}

I'd like to "add" the hashes together so that I get

result => {:key_one=>100, :key_two=>500, :key_three=>400}

Do I need to write my own function to parse through each hash's keys?
Is there a built-in way to do this?

Thanks!
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