fizzbuzz

fizzbuzz.rb

=begin
Write a program that prints the numbers from 1 to 100.
But for multiples of three print "Fizz" instead of the number and for the multiples of five print "Buzz".
For numbers which are multiples of both three and five print "FizzBuzz".
(http://www.codinghorror.com/blog/2007/02/why-cant-programmers-program.html)
=end

module FizzBuzz
  def self.fizzbuzz(n)
    case
    when (n % 15).zero? then return "FizzBuzz"
    when (n % 3).zero?  then return "Fizz"
    when (n % 5).zero?  then return "Buzz"
    else return n
    end
  end

  def self.getfizzbuzz!(n)
    1.upto(n).reduce([]) { |memo, n| memo.push(self.fizzbuzz(n)) }
  end
end

(1..100).map{|i|(f=[["Fizz"][i%3],["Buzz"][i%5]].join).empty? ? i:f}

That is second to the solution that only uses lambdas.