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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.
Not a kata issue, it's a problem with your code. When in doubt, check also how many completions there already are:
JavaScript Completions 21864it's highly unlikely there is a problem with the kata.The previous test expects 10, that test expects 1. The log appears above the test result.