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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.
Tried using the unshift method and nothing more
OR is always hard to understand. can you check my one line solution? :)
Please use spoiler flag next time.