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.
Thats what I am returning, I'm returning its @next field. I've tried it both with that and a new EmptyList just to be sure.
Nevermind, that was the issue. My problem wasn't with the ListNode code, but with the EmptyList push function.
I understand what the error message means, but mine won't pass that one either. I am returning an empty list in that case, I've tested it with my own test cases successfully. I KNOW I am returning an EmptyList and that it returns true for isEmpty(), but still no dice. Anyone else have this issue?