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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.
Yes it is. Guess I didn't feel like looking up the date methods when I did this.
This is a total overkill - converting date to string and parsing it, while there are methods that already return proper numeric values for each date part.
What happens when the given radius is not a number? I expect you get some sort of error, but I'm not sure which error. ;-)
All numbers in JavaScript are floating-point -- they are not completely accurate. Try a few different ways to round and you should be fine.
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