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Declaring and unwrapping optionals

Declaring and unwrapping optionals: Swift 4 Essential Training
Declaring and unwrapping optionals: Swift 4 Essential Training

Optionals are unique to Swift—essentially they tell the compiler that there may or may not be a value present in a given variable. In this video, go over optional syntax and how to use them effectively.

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Skill Level Beginner
3h 15m
Duration
203,886
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Skills covered in this course
Developer Mobile Apps Programming Languages Swift

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