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Test: Swift - Introduction to Optionals
2. How is the no-value state in Swift represented as?
Results Congratulations! Correct Answer. You Answered: None. If you took the test, your answer will show up here. Correct Answer: nil Explanation In Swift, a no-value state (in case of Optionals) is represented as nil. In Objective-C, 0 can be used to represent the reference of class variable. It is not the same in Swift.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 talks about the purpose of Optionals in Swift and how to declare them in your code.
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This is a test on basic concepts of Optionals in Swift.
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