Hey Guys, I have a comment about the instruction: Complete the function that accepts a string parameter, and reverses "each word" in the string. I understand (before example) that I have to reverse the order per word, and I think this case could be interesting also. Sometimes it is important to be absolutly literal on description, my suggestion is: "Complete the function that accepts a string parameter, and reverses "each letter and word" in the string.". What do you think?

Starting today. I have learned a lot. If I write a letters, this code accepts letters and use numbers as a string, I wonder how to force user to only use numbers.