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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.
I don't know why 0 * -1 = -0 in JavaScript which is very different from math. Every number that multiplies with 0 should be result in 0 right?
ofcourse!
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Do a Supra one next