ruby for loop using range class instead of fixnum? -

 In  I put it in [0..4] i + 1 end  

For the undefined method 0..4: Range (Noble Enterier)

Why not treat each number in the range as a single digit in the loop?

Instead, type:

  for i in 0 .. 4  

Otherwise you do not have any range, you have an array of 1 category.