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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.
The video just shows how to solve this kata in JavaScript. It's a blatant spoiler. He's trying to drive traffic to his utube channel. He's made a dozen videos showing how to solve various CW katas, and that's about it.
Why are you posting this as a suggestion?
Marked as resolved.
Also it helps a lot if you mention what language you are talking about. Since this kata has been translated into many languages by now.