Experimenting with metaprogramming in Ruby.

thing.rb

class Thing
  def self.format_answer_for(question_title, &block)
    define_method("__format_answer_for_#{question_title}", &block)
  end
end
 
 
#################
## Test Case 1 ##
#################
# Define a new instance method using an arbitrary string ("testing")
Thing.format_answer_for("testing") { puts "O HAI" }
# Call the method directly
Thing.new.__format_answer_for_testing # O HAI
#################
 
 
#################
## Test Case 2 ##
#################
# Define another new instance method, store it
thing = Thing.format_answer_for("another") { puts "WAT" }
# Output instance methods for class Thing
puts Thing.instance_methods - Object.methods # __format_answer_for_another
# Call the new instance method
thing.call # WAT
#################