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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 do you solve the
Uncaught Error: Bad state: No element
please explain
Please explain
Facts!!!
I have learnt something new today. The Gauss formula. Thank you so so much to you and @ddt626.