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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.
what is:
'm.expand'?
Why would it be ok? See what it does here: https://regex101.com/
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In this case, the requirement is to have a password at least six characters long. This seems like a sensible minimum length. The value itself is entirely arbitrary, though.
сould someone please explain me why {6,}$
not {3,}$ ???
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