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.
Description updated
Hey, I get your mysterious error too.
Anyway, this solution isn't very efficient so it shouldn't be able to pass. Did you read the hint?
It's not a method, it's a keyword. It's equivalent to a try/catch statement in some other languages.
This may help:
http://rubylearning.com/satishtalim/ruby_exceptions.html
Because an error occurred, maybe? Try
digits.lengthThanks!