Return to Snippet

Revision: 38204
at December 28, 2010 15:15 by Shamaoke


Initial Code
# encoding: utf-8

# Two ways of extending a class by class methods.
module M
  module ClassMethods
    def one
      'ok!'
    end

    def two
      'ok two!'
    end
  end
end

# I
class TestOne
  class << self
    include M::ClassMethods
  end
end

# II
class TestTwo
  extend M::ClassMethods
end

puts [
  TestOne.one, #=> ok!
  TestOne.two  #=> ok two!
]

puts [
  TestTwo.one, #=> ok!
  TestTwo.two  #=> ok two!
]

Initial URL

                                

Initial Description
An example which illustrates the ways of extending a class by class methods.

Initial Title
Two ways of extending a class by class methods

Initial Tags
class

Initial Language
Ruby