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.
The last case works fine and this kata is not broken, despite what you may read in the comments. The kata only says to return 'Error' for string.
No test cases, which makes the run button return 'Test didn't pass: Unknown error'. This is a kata for new programmers and should include test cases, even if only to avoid cryptic error messages. The only thing hard about this kata is the apparent laziness by it's creator.
This comment is hidden because it contains spoiler information about the solution