Copy a very clever fizzbuzz implementation in ruby. http://dave.fayr.am/posts/2012-10-4-finding-fizzbuzz.html

overthinking-fizzbuzz.rb

class FizzBuzz
  def initialize
    @printed  = nil
    @printers = [
      lambda {|x| print (@printed = "Fizz") if x % 3 == 0},
      lambda {|x| print (@printed = "Buzz") if x % 5 == 0},
      lambda {|x| print (@printed = "Bazz") if x % 7 == 0}
    ]
  end

  def for_num(i)
    @printed = nil
    @printers.each { |l| l.call(i) }
    print i unless @printed
    puts # Newline
  end

  def run(x = 100)
    (1..x).to_a.each { |i| for_num(i) }
  end
end

# Add option to count to values > 100 since 3 * 5 * 7 > 100
FizzBuzz.new.run(ARGV.first || 100)