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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.
What I did is I created a new function and pass on a local variable inside the persistence method. For some reasons, the code doesn't wanna exit as soon as it reaches a return line. wth.
A global var keeps its value between tests, it's not a CW thing, when you call your function several times in a row, it'll fail everywhere too.