makaroni4 / Question_4.rb

Created March 24, 2014


    
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            # Reddit thread: http://www.reddit.com/r/ruby/comments/217yvm/trivia_ruby_quiz/
# Quiz page: http://makaroni4.com/ruby/quiz/2014/03/24/ruby-quiz/
# Explanation link: http://www.medihack.org/2011/03/15/intend-to-extend/
 
# Code example:
 
module Human
  def eat
    puts "Yam"
  end
end
 
class Robocop
  def shoot
  end
end
 
class User
  extend Human
end
 
User.eat # => Yam
 
class User
  extend Human
  extend Robocop
end
 
# => wrong argument type Class (expected Module)