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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.
No, why would you think that? Once you get used to this type of if statement its way more readable than an if statement that takes of many lines for no reason.