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.
Why is the previous test expects
False?-121 squared equals 14641
That test expects
True, it seems you're reading the logs wrong (the previous test expectsFalse): read this: https://docs.codewars.com/training/troubleshooting