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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.
Sure, you can, though I cannot figure out an elegant way to do it (putting all the letters in the regex to check each one is present).
is there way to solve this using Regex? I couldn't find one but love to see if someone else figured it out XD