Singleton method vs. class method

Question

Are class method and singleton method doing the same or different? Here is an example.

class C
  def self.classmethod
    puts \"class method #{self}\"
  end
end         


        

Answer 1

In ruby class is an object as well. So, in your example classmethod is a singleton method for object C and singletonmethod is singleton method for object c.

I highly recommend book "Metaprogramming Ruby" by Paolo Perrotta.