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Test: Swift - The Implementation of Optionals
2. Which of the following cases does Optional enum contain in Swift?
Results Congratulations! Correct Answer. You Answered: None. If you took the test, your answer will show up here. Correct Answer: None; Some; Explanation The Optional enum contains two cases - None represents nil or the no-value state and Some represents the a value of type Wrapped.Take the Test Take the complete test on this topic. You will be able to review answers to questions and get a test score.
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Test is Based on this Article
This article discusses how Optionals are implemented in Swift.
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Test on how Optionals are implemented internally in Swift.
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