From: "Padma J." <lists@...>
Date: 2012-09-19T13:29:00+09:00
Subject: Re: how to sum element of array

@Matthew: that was funny :)

And I agree, should have used more descriptive variable names and 'i'
isn't a good choice as it's mostly used for indices.

  array.inject(0) { |sum, element| sum + element }

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