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Test: Swift - Introduction to Optionals

5. var score: Int?; print(score) - what would it print?



Results
Congratulations! Correct Answer.
You Answered: None. If you took the test, your answer will show up here.
Correct Answer: nil
Explanation
When a variable or constant is declared as an Optional, its initial value is going to be nil (unless it is initialized in the declaration itself). Since the value here is nil, the print function will print nil.
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Question 5 of 5


Test is Based on this Article
icon-swift-article.jpg
Tags: optionals, swift
This article talks about the purpose of Optionals in Swift and how to declare them in your code.
icon-swift-test.jpg
Tags: optionals, swift
This is a test on basic concepts of Optionals in Swift.

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