Companion gist for http://rosslebeau.com/2016/fizzbuzz-challenge-ruby-thinking-functionally

fizzbuzz-functional-no-conditionals.rb

def fizzbuzz start, limit
  (start..limit).to_a.map { |n|
    printFizzBuzzForInput n
  }
end

def printFizzBuzzForInput n
  print "#{'fizz' * f(n)}"
  print "#{'buzz' * g(n)}"
  print "#{n.to_s * h(n)}"
  print "\n"
end

def f n
  ((n % 3 / (n % 3 + 1.0)).ceil - 1) * (-1)
end

def g n
  ((n % 5 / (n % 5 + 1.0)).ceil - 1) * (-1)
end

def h n
  (n % 3 / (n % 3 + 1.0)).ceil * (n % 5 / (n % 5 + 1.0)).ceil
end