From: Adam Prescott <mentionuse@...>
Date: 2011-03-22T22:01:14+09:00
Subject: Re: summing values in a hash?

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On Tue, Mar 22, 2011 at 12:57 PM, Jen <jen.bottom@gmail.com> wrote:

> Is there an inbuilt method to sum all values in a hash and return the
> result?
>
> I.E something like puts hash[values].sum
>

You could try

hash.values.inject { |a, b| a + b }

Alternatively, you have the shorter form, inject(&:+) or inject(:+)
depending on your version of Ruby. 1.8.7 and higher should support all
three.

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