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.
The error message just says that you returned 6 when you were supposed to return 17
There are >64,000 correct JS submitted so far; it is extremely unlikely that the tests are bugged.
I also can't get your solution to fail. Perhaps you solved your own problem already?