Add Method to Existing Class in Ruby

Jan 7th, 2012 | Comments

Classes are not locked down in Ruby. If you wanted to add the firstName method to the String class, you could call that method on any string. For example …

"Chad Dalton".firstName

As with most Ruby, the code is simple and straight-forward. Here is code that allows you to write 2.weeks.ago …

require 'date' class Weeks def initialize(number) @number = number end def ago() return Date.today – (@number * 7) end end class Fixnum def weeks return Weeks.new(self) end end

Mungomash

Chad Dalton - hacker

Add Method to Existing Class in Ruby

Comments