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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.
No, I said print it, so you can see with what values your function fails.
I don't use - may the mods forgive me for using this dirty word - JavaScript, but I have seen other people make this comment before, and it seems to be because
the_function_you_are_trying_to_useis not implemented in the Node.js version of this kata (I have no idea what Node.js is - just repeating what I've seen in other comments).I hope that helps you google a bit for alternatives, until a Codewars user with JS experience sees your question and can help out more than me.
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