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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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Note that returning any positive number from the comparison function is the same as returning
1, so you can shorten it toa - b. Also,slice()can use negative indices soages.length - 2is equivalent to-2, and end defaults to the length of the array, soages.lengthis redundant.