jamesrochabrun

//: Playground - noun: a place where people can play

import UIKit


//ENUMS

enum Day {
    
    case monday

jamesrochabrun

//DEFINING A PROTOCOL

import Foundation

protocol FullNameable {
    
    var fullName: String { get }
}

jamesrochabrun

import Foundation

import UIKit

//computed properties 
//A computed property does not actually store a value, but computes it based on the values of other stored properties in our class.
//they can not stored values
//A computed property that does not specify a getter or setter is by default a read only computed property

jamesrochabrun

//reference types
class someClass {
    var name: String
    init(name: String) {
        self.name = name
    }
}

var aClass = someClass(name: "James")
var bClass = aClass

jamesrochabrun

//: Playground - noun: a place where people can play

import UIKit

//initialization
//value types get defautlt initializers , structs and enums

//1- failable and throwing initializers

//What happens if we can't initialize an object? This is a common occurrence if initialization depends on external data. Swift gives us two ways to deal with this - failable and throwing initializers.

jamesrochabrun

import Foundation

//initializer delegation definition: When one initializer calls another this process is known as initialize

//Initializer delegation - VALUE TYPES
//note value types have a memberwise initializer so they dont need the init method

struct Point {
    var x:Int = 0

jamesrochabrun

//: Playground - noun: a place where people can play

import UIKit

//Value types in Swift includes structs, enums, arrays and other native types

//Value semantics

struct Point {
    var x: Double

jamesrochabrun

import Foundation

//helper struct
struct Point {
    var x: Double
    var y: Double
}

//type methods - valueType section
//you cant override in value types because they don't have inheritance

jamesrochabrun

        class Dog {
            var name: String
            init(name: String) {
                self.name = name
            }
        }
        
        class Chihuahua: Dog {
            
            override init(name: String) {

jamesrochabrun

//: Playground - noun: a place where people can play

import UIKit

var str = "Hello, playground"
//Extensions
//in Swift we can use extensions to add functionality to an existing class, structure, enumeration or even a protocol type.

//TYPE EXTENSIONS
extension Int {