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 comment is hidden because it contains spoiler information about the solution
I can understand that this one is to help people with Array functions but maybe suggest they look for them not give the answer in the details.
Agreed, this was a test, have added some extra tests