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.
Sample tests are missing
it
blocks.Cannot check full test because the kata cannot be completed now.
Got the following error when running the tests:
This comment is hidden because it contains spoiler information about the solution
Random tests pass ranges, not arrays.
Trivial map/filter/reduce is not a novel kata idea.
What are you doing in the random tests? It seems you're calling the user's function twice with different arguments.