From: Daniel Harple <dharple@...>
Date: 2006-03-13T05:54:04+09:00
Subject: Re: array element access


On Mar 12, 2006, at 9:34 PM, Tomas Fischer wrote:

> Hi,
>
> I've got an array a= [1,2,3,4,5,6] and want to access each second
> element:
> b=[2,4,6]. How is this done in ruby?
>
> I know, that I can use a for-loob and modulo operator, but I think  
> there
> is a "ruby way" of doing this.
>
> Thanks.
> tomas
>
> -- 
> Posted via http://www.ruby-forum.com/.
>

require 'enumerator'
a = (1..10).to_a
p a.enum_for(:each_slice, 2).collect { |m| m[1] } # -> [2, 4, 6, 8, 10]

-- Daniel