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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.
That's because there's nothing to test (a
nullis passed in), which makes it vacuously true.If I say "all CW users who are
2danare aliens", that'd be true because there are currently no users who are2dan.What is good to read up on about those "___" and "->" symbols? I don't even know what they are called. I'm not understanding how both "allMatch(null, __ -> true)" and "allMatch(null, __ -> false)" could both be true.