From: Lloyd Linklater <lloyd@2live4.com>
Date: 2007-08-28T03:13:55+09:00
Subject: Re: sort_by { rand } not working

dang it!  I *knew* that I should have been thinking more ruby and less 
pascal.  This may look more rubyish:

def arr_rand(ar)
  arr = []
  while ar.length > 0 {arr << ar.delete_at(rand(ar.length))}
  arr
end
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