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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.
This solution does not work anymore..
Description ( now ) specifies "finite number". This is perfectly clear. Closing.
This doesn't really solve the Kata although you could argue that the test cases could be more comprehensive!
description is not clear, states to return false if any values are not finite and then expects NaN, also doesn't state to return 0 if no arguments are passed.
Instructios not very clear of the case "NaN" or "String" instead of numbers