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.
same with me, i'm using javascript i got an error until i parse the value to Number
why though???
Please try again: back up your code, reset your trainer, and run tests once more.