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 error with this task. please correct
It's not the source, the first one is the array you returned and the second one is the expected. Use print to see what the input is, and use Question, not Issue for things like this.