From: "Peña, Botp" <botp@...>
Date: 2008-04-18T17:02:59+09:00
Subject: Re: Naming question

From: Robert Dober [mailto:robert.dober@gmail.com] 
# module Enumerable
#   def partition_by &blk
#     result = Hash.new {|h,k| h[k] = [] }
#     each do | element |
#       result[ element ] << blk.call element
#     end
#     result
#   end
# end

i think this is #group_by in 1.8.7 and 1.9 ?

kind regards -botp