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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.
:) same here
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Try it and you will see.
-0is a (computing) convention, as such it is not less a number than0(it's just two ways of representing the mathematic0in different contexts). But it is not a problem here since in JS0 === -0, so this difference won't make an answer invalid.Which is not a problem.