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.
Nice. Additionally the description could include a hint on wether multiple '-' / '_' are something to worry about as input (e.g. "camel___case--this").
Awesome :)
The description could use an example like [9,9] => [1,0,0], showing that the length of the returned array is expected to change.
Otherwise, this behaviour can come as a bit of a surprise for more staticly types languages.