From: Ammar Ali <ammarabuali@...>
Date: 2010-11-13T02:17:26+09:00
Subject: Re: help sorting objects by their instance field

On Fri, Nov 12, 2010 at 7:12 PM, Ammar Ali <ammarabuali@gmail.com> wrote:
> It sorts the array itself, no need to make a copy.

Sorry. I gave you wrong information. Probably need more coffee.

>> a = [[1,3], [3,2], [5,1]]
=> [[1, 3], [3, 2], [5, 1]]
>> a.sort_by {|e| e[1]}
=> [[5, 1], [3, 2], [1, 3]]
>> a
=> [[1, 3], [3, 2], [5, 1]]

Regards,
Ammar