Metaprogramming in Ruby

Exercise 3

There are lots of ways to define singleton method.

animal = 'dog'

# define singleton speak() method

animal.speak  #=> 'Dog says Woof!'

Write your codes and post them here. Let's discuss about them.

Hints:

• def animal.speak
• singleton class
• define_method
• instance_eval
• module, extend
• module, include
• send, lambda

This page was last updated on 7th Dec. 2010.