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.
Where can I get more info on that '$' at the end of the regex? I didn't know about that one and I don't seem to find it.
The most readable solution for a common Human
I actually did it like this. But I think who made this kata should make a test like the one you mentioned so that other users will fail when trying it.