Ruby nested classes and modules

Question

I am familiar with the concept of nested classes and modules inside another module and grouping them in a namespace. What is the idea / goal behind

• Nested classes inside another class

  class A
    class B
      def method_B
        ...
      end
    end
  end
  

• Nested modules inside another class

  class A
    module c
      def method_c
        ...
      end
    end
  end
  

thanks ash

Answer 1

Classes are also namespaces, so the same idea. A class is a subclass of a module, so if you get it in the context of modules, you also get it in the context of classes.

Answer 2

, . 1 HTTP:: Request ( , HTTP) - FTP:: Request. Behavior:: InstanceMethods Behavior:: ClassMethods .