ashrewdmint · August 5, 2009 04:33
diff --git a/gistfile1.rb b/gistfile1.rb
 # There are some faster ones out there, but I thought this was cute:

 class Array
  def duplicates
    self.reject {|item| self.select {|sibling| sibling == item}.length == 1}.uniq
  end
 end
	# There are some faster ones out there, but I thought this was cute:

	class Array
	def duplicates
	self.reject {\|item\| self.select {\|sibling\| sibling == item}.length == 1}.uniq
	end
	end