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.
OK. I see what's happening.
The ruby translation sometimes generates invalid index(equals to the array.length)
Now it's fixed, please retry. perhaps you should copy your code then refresh the page at first.
Thanks for the feedback ;-)
what's the error message you got when test fails? and, which language you are using?