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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.
it's a dude with Elvis hair
?:^|
That's just to make it non-capturing.
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where can i learn in a good an easy way to make regexp operations pls
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Wow