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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.
A perfect example of when not to use point-free style.
This catches every missing method. Very bad practice.
Ruby.
Well I just wasted about an hour on this because my method sorted the items array in-place, causing my solution to not match because the expected output was getting a different input.
Is it possible for you to pass a dup of an array to avoid this problem?