gistfile1.rb

class Object
  # Invoke each zero-arity method in messages on obj, returning the
  # results of those calls in a Hash.
  #
  # messages - one or more symbols representing methods to invoke on
  #            obj.
  #
  # Examples
  #
  #   "foo".multi_send(:length, :reverse)
  #   # => {:length=>3, :reverse=>"oof"}
  #
  # Returns a Hash containing each symbol in messages mapped to the
  # value returned by invoking that method on obj.
  def multi_send(*messages)
    messages.inject({}) { |h, msg| h[msg] = send msg; h }
  end
end