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.
Would it be clearer to raise custom exceptions, rather than return exact strings?
This would avoid copy-pasting text from the description.
Ugh, didn't know about that regex feature, this is ugly!
This comment is hidden because it contains spoiler information about the solution