Things to do with modules

Modules

# gema que sigui                                                                                                                                                                                                                                                            module Gem                                                                         
    def foo                                                                       
        'hey'                                                                       
    end                                                                           
end                                                                             
                                                                                 
class A                                                                         
    include Gem                                                                   
end                                                                             
                                                                                 
# nostre core_ext                                                               
module CoreExt                                                                  
    def foo                                                                       
        super                                                                       
    end                                                                           
end                                                                             
                                                                                 
class A                                                                         
  include CoreExt                                                               
end                                                                             
                                                                                 
p A.new.foo