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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.
No, but if you use
match
in your code, it can returnnull
.Is there any strange case value in random tests, like undefined, numbers, nulls etc? I got "TypeError: Cannot read property '1' of null" but in my console I reach the expected result for many values that I test