From: Michael Fellinger <m.fellinger@...>
Date: 2008-03-25T11:08:46+09:00
Subject: Re: generating unique random numbers

On Tue, Mar 25, 2008 at 10:26 AM, Tim Hunter <TimHunter@nc.rr.com> wrote:
> Jimmy Palmer wrote:
>  > Tim Hunter wrote:
>  >> ~$ irb
>  >> irb(main):001:0> (1..13).to_a.sort_by{rand}[0..7]
>  >> => [7, 3, 8, 2, 11, 4, 1, 9]
>  >> irb(main):002:0>
>  >
>  > thanks Tim.  i like it.
>
>  You're welcome. Turns out you don't need the to_a. One less method.

(1..13).sort_by{ rand }.first(7)

my attempt to improve upon it :)