Computed read-only property vs function in Swift

Question

In the Introduction to Swift WWDC session, a read-only property description is demonstrated:

class Vehicle {
    var numberOfWheels = 0
    var          


        

Answer 1

There are situations where you would prefer computed property over normal functions. Such as: returning the full name of an person. You already know the first name and the last name. So really the fullName property is a property not a function. In this case, it is computed property (because you can't set the full name, you can just extract it using the firstname and the lastname)

class Person{
    let firstName: String
    let lastName: String
    init(firstName: String, lastName: String){
        self.firstName = firstName
        self.lastName = lastName
    }
    var fullName :String{
        return firstName+" "+lastName
    }
}
let william = Person(firstName: "William", lastName: "Kinaan")
william.fullName //William Kinaan