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iOS Build a Simple iPhone App with Swift Structs As Data Models Structs or Classes

Michael Rockett
Michael Rockett
40,365 Points
Posted by Michael Rockett
Michael Rockett
40,365 Points

Why would a class be better suited?

At the end, Pasan says a class would be better in this instance. Why would that be true? The facts array are just simple fixed values. I would have thought a struct would be the best choice here.

1 Answer

jonlunsford
jonlunsford
16,467 Points
jonlunsford
jonlunsford
16,467 Points

At the end of the video, Pasan is pointing out that people coming from other languages might ask "Why wouldn't you model this as a class property?" Class properties are properties on the class and not the instance of a class. Not all languages support the Struct type.

In Swift it would be appropriate to use an instance of the Struct type like so:

let factProvider = FactProvider()

The factProvider constant represents an Instance of FactProvider Struct. In other languages the only option might be to model it as a class with a class property. In this case you would call the class directly in your code like so:

FactProvider.fact
Michael Rockett
Michael Rockett
40,365 Points
Michael Rockett
Michael Rockett
40,365 Points

Oh ok, I understand now. Thank you.