From: Pradeep Jindal <praddyjindal@...>
Date: 2006-11-27T19:58:37+09:00
Subject: Re: find index of first non zeo value in array

On Sunday 26 November 2006 21:22, Park Heesob wrote:
> Hi,
>
> >From: Josselin <josselin@wanadoo.fr>
> >Reply-To: ruby-talk@ruby-lang.org
> >To: ruby-talk@ruby-lang.org (ruby-talk ML)
> >Subject: find index of first non zeo value in array
> >Date: Sun, 26 Nov 2006 23:00:10 +0900
> >
> >with :
> >array = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 21, 0, 0, 0, 0, 0,
> > 0, 0, 0, 0, 0]
> >
> >I wrote :
> >array.index(array.detect {|x| x > 0})    => 15
> >
> >is there a better and simpler way to do it ?
> >thanks
> >
> >joss
>
> How about this:
>
> array.index((array-[0])[0])
>
> Regards,
>
> Park Heesob
>
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Not a generic way, but pretty good for this specific problem.

Regards,
Pradeep