Swift Optionals Tutorial - Unwrapping - Guard, If Let, Chaining, Force - - vimore.org

Swift Optionals Tutorial - Unwrapping - Guard, If Let, Chaining, Force

Swift Optionals Tutorial - Unwrapping - Guard, If Let, Chaining, Force

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The next topic in my series on iOS Interview questions explains unwrapping Optionals in Swift. This iOS interview question was asked in most almost all interviews. In this Swift tutorial I'll explain if let, guard statements, optional chaining, and force unwrapping, using Xcode. This is part of a series of videos about iOS interview questions in Swift. Check out the overview where I list and briefly discuss all the topics that are in this series: https://youtu.be/56ZO6Gg68tw Optional Chaining Apple Doc https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/OptionalChaining.html Xcode Project Source Code: https://www.dropbox.com/sh/rnx5gabo6s9ktt0/AAAr63-6HmSVMLq8KowRFxDJa?dl=0 Follow me on Twitter: https://twitter.com/SeanA0400



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