From: Martin DeMello <martindemello@...>
Date: 2008-08-21T11:58:39+09:00
Subject: Re: "num in [1,2,3,4]" in a cool way?

On Wed, Aug 20, 2008 at 7:05 PM, Michael Fellinger
<m.fellinger@gmail.com> wrote:
>
> num = 5
> [*1..4].inject(num){|m,v| m == true ? m : (m == v || m) } == true

 ary.inject([num, false]) {|(n,a), i| [n, a | (n == i)]}.last

martin