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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.
what in case of punctuation?
Can anyone explain what this statement is doing? return string.split(op).map { |s| evaluate(s) }.inject(op.strip) It looks like recursion if I'm correct. Thanks!
Jason explained it in depth. Not sure there's anything more to add to that
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This comment is hidden because it contains spoiler information about the solution