Example of FizzBuzz in Ruby using procs

fizzbuzz.rb

MULTIPLE_OF_3 = ->(n){ (n % 3).zero? }
MULTIPLE_OF_5 = ->(n){ (n % 5).zero? }
MULTIPLE_OF_3_AND_5 = ->(n){ MULTIPLE_OF_3[n] && MULTIPLE_OF_5[n] }

(1..100).each do |num|
  case num
  when MULTIPLE_OF_3_AND_5
  	puts "FizzBuzz"
  when MULTIPLE_OF_3
  	puts "Fizz"
  when MULTIPLE_OF_5
  	puts "Buzz"
  else
  	puts num.to_s
  end
end