From: Joshua Collins <kidguko@...>
Date: 2009-05-14T15:55:12+09:00
Subject: Re: find previous & next in array

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Boby had it almost right!

instead of:

a[a.index(:c)+1]

it is:

a[a.index('c')+1]

:-)

On Wed, May 13, 2009 at 11:48 PM, Boby Selamet Hartono
<vecciora@gmail.com>wrote:

> 2009/5/14 John Griffiths <indiehead@gmail.com>
>
> > hi, anyone know how to do this?
> >
> > basically i've got an array of items
> >
> > a = ['a','b','c','d']
> >
> > now given i can find the position of say 'c' using .index('c'), how do i
> > get the positions of the ones previous & next to it.
> >
> > a recursive routine would probably do it, but looking for something more
> > flash
> >
> > any ideas?
> > --
> > Posted via http://www.ruby-forum.com/.
> >
> >
> a[a.index(:c)-1] or a[a.index(:c)+1]?
>
> --
> Tidak ada yang lebih baik dari kembali ke asal
> Nothing can be better than back to the roots
>

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