Learn Swift: Optionals
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Learn how to define functions and handle values that might be absent using optionals in Swift.
About this course
Continue your Swift learning journey with Learn Swift: Optionals. Sometimes when we work with data, we find that information is missing. Handle values that might be absent by learning how to use optionals.
Skills you’ll gain
Handle data that might be nil with optionals.
Bind optionals using if let and guard statements.
Define functions that take in and return optionals.
Notes on prerequisites
We recommend that you complete Learn Swift: Enumerations before starting this course.
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