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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.
Fixed
I would not consider this a suggestion. I would consider this an issue.
Firstly, the instruction is clear about those are forbidden no matter where in your code. If you can access
'+'in any other ways, then doing so will be allowed.Secondly, built-in object methods are still available. But to access them, you need to figure out some ways apart from calling by them
..Should you have any question, feel free to ask me then.
Happy coding! :D
I'm not sure I understand you correctly, but I cannot provide a JS version, until somebody translates it.