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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.
isn't best practices is just so clever and unreadable
But only for 32-bit signed numbers (from -2^31 to 2^31 - 1). Out of this range the result will be different from expected.
Turn on the spoiler alert please :D
It is a short form of
Math.floor