Under the Iteration to Recursion, Changing Iterative code to Recursive there is a bug in count number of digits in a number in the recursive solution. Returning 1 when num <= 1 only will return the correct number 8 if the first digit is a 1. The if conditional should be if (num / 10 == 0). Minor issue, but bugs like these are annoying for a course I paid $60/month for, doesn’t give me much confidence in your product.
No tags for the course I’m taking either, why.