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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.
Neat! I did it the same way. So concise.
pageItemCount is really clever and in functional style + when not
Nothing
uses less memory then most of solutions here.This comment is hidden because it contains spoiler information about the solution
This doesn’t satisfy “An invalid program should raise a type error rather than a runtime error.”