Swift Series for Beginners(2019) | Day 22 - Optionals
Hey Devs,
Today we are going to learn about optionals that is very important concept related to swift 5 and it is very handy while developing iOS applications.An optional acts as a container for a value of a particular type. The container holds a value or it doesn't. in other words An optional in Swift is a type that can hold either a value or no value. Optionals are written by appending a ? to any type.
#optional #chaining
• Swift Series for Beginners(2019) | Day 23 ...
This Swift series is totally dedicated to beginners with no programming experience and intermediators. it uses latest version of Swift 5 and XCode 10.2.
During this series i will provide you some practice questions that will help you to understand the concepts and learn how & where you can apply these skills in real life problems.
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