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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.
Haha love your solution ;)
And why is it dangerous? Do you think I could lost some part of imput or is it a question of Best Practices?
I'm not really experienced programmer so thank you in advance for your answer.