Fizz Buzz solution in Ruby

fizz_buzz.rb

# FizzBuzz

def add_trigger_word(number, factor, output_array, word)
  output_array << word if number % factor == 0
  output_array
end

word_map = {
  3 => "Fizz",
  5 => "Buzz",
  7 => "Bang"
}

(1..100).each do |index|
  trigger_words = word_map.reduce([]) { |output, (key, word)| add_trigger_word(index, key, output, word) }
  trigger_word = trigger_words.join

  puts trigger_word.empty? ? index : trigger_word
end