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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.
I think that the point of this kata is try to resolve it without using these functions.
it looks great its like reading it in english as if it is not even code
I would like to see more solutions like this one.