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Bruno Ariza
8,095 PointsStruct or class?
When i use a Struct and when i use a Class in swift? What is the diference?
1 Answer
Chris Shaw
26,676 PointsHi Bruno Arizio,
Without confusing you with a bunch of technical speak here are the basic.
Struct's
Struct's are useful for simple data management that pass between various parts of your code, they are useful in the sense that no changes can be made to a struct instance once created which is defined as an immutable data type. If for instance you have a bunch of weather data a struct would be good to handle this as you don't expect the application to change anything inside the given instance.
One thing to keep in mind is you can alter structs but you first need to prepend the keyword mutating before any method within the struct that is required to make changes to the already present data.
Classes
Unlike a struct, classes are mutable data types meaning whenever you pass an instance of a class around your code base it can be modified by any other part of the code which can lead to incorrect or even unusable data if not managed correctly throughout it's lifecycle.
Hope that helps.