Fizz Buzz in Ruby (example code on if/case and for/iterators)

fizzbuzz.rb

#

for n in 1..100
  if n % 15 == 0
    puts 'fizzbuzz'
  elsif n % 3 == 0
    puts 'fizz'
  elsif n % 5 == 0
    puts 'buzz'
  else
    puts n
  end
end

fb = lambda {|n|
  case n % 15
  when 0 then
    'fizzbuzz'
  when 3, 6, 9, 12
    'fizz'
  when 5, 10
    'buzz'
  else
    n
  end
}

(1..100).map &fb

Fizz Buzz in two ways
(1) for and if; and
(2) map, case and lambda block