From: Josh Cheek <josh.cheek@...>
Date: 2010-09-09T12:23:42+09:00
Subject: Re: Key Associated w/ Maximum Value in Hash

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On Wed, Sep 8, 2010 at 9:57 PM, Timothy Baron <timothy.baron@gmail.com>wrote:

> Simple question:  what's the cleanest way to retrieve a key associated
> with the maximum value of a hash.  For instance, how do I retrieve 'b'
> from the following example:
>
> hash = Hash.new
> hash['a']=4
> hash['b']=10
> hash['c']=7
> --
> Posted via http://www.ruby-forum.com/.
>
>
How about Enumerable#max

hash = {'a'=>4,'b'=>10,'c'=>7}
max_record = hash.max { |a,b| a.last <=> b.last } # => ["b", 10]
max_index = max_record && max_record.first # => "b"

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