From: Emmanuel Oga <oga_emmanuel_oga@...>
Date: 2007-09-18T00:18:09+09:00
Subject: group array elements in groups of two

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]]

Thanks!
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