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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.
I cannot relate to the downvotes, that is a totally valid comment.
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What is this, it's not a keyword?
love this because it's much more easy to comprehend than fluent methods that do lots of clever conversions (which I def ended up doing). I would much rather see this code in a production codebase!
nice use of not()!
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The requirements were to filter out strings (vs. retain the ints). If your filter predicate checked that "the object is not a string", the function will maintain correctness even if the input evolves to contains more objects than just ints and strings :)
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