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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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Yes, it creates. But it drops input array setting copy of it to the numbers param. It possibly could also be considered as input array changing.
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Sorry. I've had honor < 50 when posting so I hadn't such possibility. But after couple more kata Codewars say I now can do this. So I'll take this to account next time. Thanks for editing.
Please use spoiler flag next time.
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I've never thought that this as well as
'' + bconverts the variable to String. And it does. Even withnull,undefinedandNaNas a value of variable.