manually adding module level attributes.rb

# the verbose, annoying to maintain way :(

module MyModule
  @@my_attribute = nil
  
  def MyModule.my_attribute=(value)
    @@my_attribute = value
  end
  
  def MyModule.my_attribute
    @@my_attribute
  end
end


#---- usage
MyModule::my_attribute = "some value"
puts MyModule::my_attribute #=> "some value"

module level attr_accessor.rb

# the metaclass way :)

module MyModule
  class << self
    attr_accessor :my_attribute
  end
end


#---- usage
MyModule::my_attribute = "some value"
puts MyModule::my_attribute #=> "some value"