How to add a instance variable through a mixin?

How to add a instance variable through a mixin? - Ruby Forum:

On 2/12/08, [email protected] <[email protected]> wrote: > end > object of MyClass. You don't really add instance variables for the instances of classes to classes in Ruby. http://talklikeaduck.denhaven2.com/articles/2008/02/08/whose-variable-is-it-anyway If you add a method to a class through a mixin which refers to an instance variable, the variable will be created dynamically in the instance as needed when the method is run. if you want to initialize it to something other than nil, you can use techniques like lazy initialization. module M def iv @iv ||= 0 # or whatever you want the default value to be end end -- Rick DeNatale My blog on Ruby http://talklikeaduck.denhaven2.com/

Full article: http://www.ruby-forum.com/topic/142444