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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.
Good point
The expected solution is not clear.
Yes it works if the array is empty or null.
But [0,0] is neither empty or null. It has two elements 0 and 0.
So this needs to be fixed.
Ok see your point if it is a higher level kata.
But an 8kyu is expected to write their own test?
Please review, the tests do not work.
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