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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.
This is a very funny way to use regex
Some people just came here to flex on us
What he meant was what if they are decimals.
That because the pattern is strongly checking for only digit (0 - 9) nothing else