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Test: Swift - Optional Chaining
Welcome to the Test: Swift - Optional Chaining.
Summary
Test on optional chaining to safely return a nil or non-nil value from a series of optionals chained together.
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This test contains 5 questions.

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Welcome


Test is Based on this Article
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This article talks about optional chaining in swift where multiple optionals can be chained together and fail gracefully by returning nil when one of them is nil.
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Test on optional chaining to safely return a nil or non-nil value from a series of optionals chained together.

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