From: Yukihiro Matsumoto <matz@...>
Date: 2007-09-18T00:35:03+09:00
Subject: Re: group array elements in groups of two

Hi,

In message "Re: group array elements in groups of two"
    on Tue, 18 Sep 2007 00:18:09 +0900, Emmanuel Oga <oga_emmanuel_oga@yahoo.com.ar> writes:

|A better way to do this? :
|
|arr= [1, 2, 3, 4, 5, 6, 7, 8]
|new= []
|while !arr.empty?
|  elem1, elem2= arr.pop, arr.pop
|  new << [elem2, elem1];
|end
|new.reverse!
|
|new= [[1, 2], [3, 4], [5, 6], [7, 8]]

require 'enumerator'
arr= [1, 2, 3, 4, 5, 6, 7, 8]
new=arr.to_enum(:each_slice, 2).to_a