Ruby on Rails

sorted_by_second_value = Hash[hash.sort_by { |_, v| v[1] }]

For those saying ruby hashes are unordered: http://ruby-doc.org/core-2.2.2/Hash.html

Hashes enumerate their values in the order that the corresponding keys were inserted.

sorted_by_second_value

​.map { |_, v| v[1] }

 => [74, 75, 84, 99, 100]

​Paul​

​

On Fri, May 29, 2015 at 6:24 AM, Gm <javap...@gmail.com> wrote:

Hi, I have this hash:

hash = { 4049=>[4133, 100], 5814=>[4075, 84], 382543=>[4064, 74], 382544=>[4065, 99], 382545=>[4066, 75] }

I need to sort (DESC) this hash by the second item of array.

Example: 100, 84, 74, 99, 75

How can I solve this problem ? I'm using sort method but can't work it out.

Thanks.

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