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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.
I see some people who'd like to know more about regex, so here is this website where you can test and learn more about regex: https://regex101.com/
Nice ( • )( • )
Well done, simple and efficient. Best solution by far.
Great solution!
it looks good and all, but there is still that undefined is prime error when you input different data type or less than 2