Question

How would I print “Hello” every nth of an iteration in ruby using something like:

50.times do
  # every nth say hello
end

Answer 1

I don’t think times will work for that case. But you can iterate over range instead:

(1..50).each do |i|
  # print hello if number of iteration is multiple of five
  puts 'Hello' if i % 5 == 0
  # do other stuff
end

Updated (thanks to d11wtq)

It turned out that Integer#times yields iteration number to the block too:

50.times do |i|
  # print hello if number of iteration is multiple of five
  puts 'Hello' if (i + 1) % 5 == 0
  # do other stuff
end

Numeration is zero-based so we add 1 to iteration number (you can use i % 5 == 4 instead, but it looks less obvious).