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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.
Using legacy version of JS and legacy testing framework. If you're going to do a performance anything, specify the input domain and the number of tests - some fast things only work over a limited range.