Type properties in Swift

A Swift variable or constant defined inside a class or struct are called properties.

Swift provides no differentiation between properties and instance variables (i.e, the underlying store for a property). To define a property, you simply declare a variable in the context of a class . A swift class is simply a ClassName.

A computed property in Swift is a get-only property because it does not have any storage that you can assign a value to . This means that the following code is not valid Swift: var user = User(firstName: “Donny”, lastName: “Wals”) user.

In swift, we can create a read-only property by only defining a getter for a variable . Meaning no setter! Since the variable only has a getter, the compiler will throw an error when we try to assign a value to “sum”.18 Ara 2021