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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.
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why the i-- after splice? does this avoid NaN at end of array iteration?
Nice work! As your == would evaluate as a boolean the
? true : false
is redudant.