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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 was really difficult and I couldn't solve it without help from outside.... I learned new things. many thanks to the author
Really good Katta! Nice practice with json and functions!
thanks!