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EPISODE · Oct 28, 2019 · 13 MIN

Optionals Are Evil..?

from Inside iOS Dev · host Alex Bush, Andrew Rohn

https://twitter.com/_ivancr/status/1180199237398626304?s=20 Need to prepare for an iOS Engineer Interview? https://iosinterviewguide.com Connect with us: https://twitter.com/insideiosdev Email us at [email protected]

Episode metadata supplied by the publisher feed · Published Oct 28, 2019

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What this episode covers

When and where should optionals be used? What are the advantages and disadvantages of optionals? Before Swift, iOS developers wrote their apps using Objective-C. In Objective-C, programmers could send messages to nil without the program crashing and in some cases was considered a feature. However, sometimes objects were unexpectedly nil and the program would incorrectly execute. Today, Swift uses optionals to more explicitly handle the case when an object is nil.

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Optionals Are Evil..?

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This episode was published on October 28, 2019.

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