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.
this does not even compile, please use some formatting to post your code:
https://docs.codewars.com/training/troubleshooting/#post-discourse
There's an extra new-line character at the end of the result from your function.
Also, next time you post your code in the discourse, mark it as spoiler.