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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.
What is false? What is the string equal to (we see nothing, consecutive spaces don't display properly in markdown? Your code not working is never to be considered an issue. And assuming there would be issue, it's impossible to do anything with what you are telling us. Please read carefully this: https://docs.codewars.com/training/troubleshooting/
(JS) !this is false when string === '', and my solution don't work here, when it works in editor...