From: Rick DeNatale <rick.denatale@...>
Date: 2010-09-09T20:52:39+09:00
Subject: Re: Key Associated w/ Maximum Value in Hash

On Thu, Sep 9, 2010 at 2:25 AM, Robert Klemme
<shortcutter@googlemail.com> wrote:
> Here's a version with #inject
>
> irb(main):004:0> hash.inject([nil,0]) {|(maxk,maxv),(k,v)| v > maxv ? [k,v]
> : [maxk,maxv]}.last
> => 10

But that fails if there are only negative values in the hash.

hash = {:a => -2, :b => -4}
hash.inject([nil,0]) {|(maxk,maxv),(k,v)| v > maxv ? [k,v] :
[maxk,maxv]}.last # => 0

-- 
Rick DeNatale

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