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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 think so too
The Kata is themed Regex validate PIN code so I believe regex is the go word here.
nice work, I had to use the if and else statement in mine I never thought of using bool()
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