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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.
Fixed.
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me too! me too! All tests pass but I get that error "TypeError: Cannot read property 'caller' of null" ... so what is the answer?? Is it that my code is too long to satsify the kata requirements? Is the "reduce" function disallowed?