properties.swift

import Foundation

class MyClass {
    private let name: String
    init(name: String) {
        self.name = name
    }
    
    // Pure computed property, cannot be set. Behaves like a constant field for the user of the class
    var computed: String {
        return "My name is \(name)"
    }
    
    // Property with getter only. Much like a computed property, defined with another syntax
    var gettable: String {
        get {
            return "Gettable from name \(name)"
        }
    }
    
    // Property with both getter and setter. Usually works as a proxy to other object's property. Or to control what's being set
    private var _prop: String?
    var prop: String {
        get { return _prop ?? "" }
        set { _prop = newValue }
    }
}

Good gist