Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Not a kata suggestion.
Hints aren't kata suggestions. Please read this: https://docs.codewars.com/training/troubleshooting/#post-discourse
No problem, you can see another way of using recursion clicking in View Solution under my post.
Using a global var like that won't work anywhere when called several times in a row, the global var will carry previous values and after the first call will give you wrong results.