Ruby Fizzbuzz

fizzbuzz.rb

#!/usr/bin/env ruby

# Requires Ruby 2.1
# BUT.. Keeps the code clean without monkey patching
module Refinements
  refine Integer do
    def div_by?(int)
      self % int == 0
    end
  end
end

class Fizzbuzz
  using Refinements

  def self.[](int)
    return 'FizzBuzz' if int.div_by?(3) && int.div_by?(5)
    return 'Fizz'     if int.div_by?(3)
    return 'Buzz'     if int.div_by?(5)
    int
  end

  def initialize(integers)
    @items = integers.map{ |int| Fizzbuzz[int] }
  end

  def to_a
    @items
  end

  def print
    @items.each { |item| puts item }
  end
end

Fizzbuzz.new(1..100).print