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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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is bitwise or.| 0
does nothing by itself, just converts number to 32-bit number (it works this way in JS)so here it's used for rounding (you could use
Math.floor
as well)Which language, what's wrong?