I'm not great at math but...

Question

I don't think this should be returning 18
https://code.sololearn.com/W58SKmyWLd2Y/?ref=app

Answer 1

that's not even including the button

Answer 2

Instead of search, you should use match function array output in order to get its length and global modifier is needed /gi
https://code.sololearn.com/W6HS6949Loer/?ref=app