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.
Thank you, that was helpful!
Someone tell me if I'm wrong please: the object the array is being mapped from contains N undefined objects, so the indexes of N undefined objects are mapped to the array.