World's best Ruby FizzBuzz

fizzbuzz.rb

class FizzBuzz

  private

  @@pairs = [
    [3, "fizz"],
    [5, "buzz"]
  ]

   def self.strings_for(n)
    @@pairs.map{|k,v| n % k == 0 ? v : nil}.compact
  end

   def self.joins(strings,n)
    (strings.size == 0 ? [n.to_s] : strings).join("")
  end

  public

  def self.stringify(n)
    self.joins(self.strings_for(n),n)
  end

end

def main
  1.upto(100).each{|i| puts FizzBuzz.stringify(i)}; true
end

main