quirkey · September 17, 2009 17:54
diff --git a/file.rb b/file.rb
 class Array
  def includes?(other_array)
  (self & other_array) == other_array
  end
 end

 [1,2,3].includes?([2,3]) #=> true
 [1,2,3].includes?([3,4]) #=> false
	class Array
	def includes?(other_array)
	(self & other_array) == other_array
	end
	end

	[1,2,3].includes?([2,3]) #=> true
	[1,2,3].includes?([3,4]) #=> false