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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.
your solution is not using hooks at all since you cannot use hooks inside class components. so your import of useState and useRef is pointless. there is no need to use refs anyway if you implement a function component with hooks.
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Fixed
;)