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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.
changing incoming parameters is unacceptable (can has fluense to other part of your app)
calculation for percent / 100. is slowing down computation in the loop
Shorter code is not always faster