I knew about this method but still typed a manual code.

You are right. I apologise, I must have been tired, went right over my head.

I wrote this maybe a decade ago. Are you suggesting that I used ChatGPT or that it can come up with code like this now?

Your code must me too slow if it doesn't pass. And we don't read minds, so if you want help with your code, you should show it to us. Follow this guide: https://docs.codewars.com/training/troubleshooting#post-discourse

Still you're not saying what's wrong with the test.

or says Hello, World! if name is not given

What to do is already in the description, how to do it is your work. Is that test different to the others? Yes. Is it wrong? No.

I don't think so. And you've passed the kata, so... Why do you think it is wrong?

Me too :)

me too

yep

read brother read

Read the title again. The tests are fine.

I know at now, hints: the person number can only be integer.
I don't want my reply flagged by spoiled so I can only say these.

same was me

explicitly convert