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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.
How would that even work anyway?
You can't have a valid string with extra letters, because the presence of extra letters means you can't say anything about the validity of any matches.
They're basically the same in this case:
https://stackoverflow.com/a/4599946
But using
evalis simpler, so I used that.