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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.
that's the juice of genius
it's when fucntion calls itself
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how it works? please explain me
can someone give a simple and clear example of what recursion is?