Created
November 14, 2018 21:44
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| items = collectionActions.scan([], accumulator: { (currentBooks, action) -> [Book] in | |
| switch action { | |
| case .bookMarkedForDeletion(let book): | |
| return currentBooks.filter { $0 != book } | |
| case .collectionRefreshed(withBooks: let books): | |
| return books | |
| } | |
| }) |
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