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 exactly, it lacks sample tests (the author expects you to create your own), but there are tests on Attempt button (and the kata can be completed). The lack of sample tests is already mentioned below, no need to keep raising the same issue over and over. Closing this one.
JS version doesn't have any tests, so it can not be completed at the moment.