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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.
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As you can see, the meaning of
ansis not clear for anyone and it's only 3 characters shorter thananswer. So one might not consider this kind of names worth using in more complicated code. However, I don't think one should care about it in a case like this.I don't get it. Whats wrong with having ans as your variable name?
Probably from Matlab, where
ansrefers to the most recent answer.'ans' may be a shortname for 'answer'