fizzbuzzrefactor.rb

def fizzbuzz(a, b)
  a.upto(b) do |i|
    if i % 5 == 0 && i % 3 == 0
      puts "FizzBuzz"
    elsif i % 5 == 0
      puts "Buzz"
    elsif i % 3 == 0
      puts "Fizz"
    else
      puts i
    end
  end
end
fizzbuzz(300, 400)