Day 8

100 Days of SwiftUI

All about structs today. I actually watched all of the videos for today and tomorrow because I was learning with each video. Tomorrow I will rewatch all of the videos for structs and take all of the tests.

When you want to change a property inside a method, you need to mark it using the mutating keyword.

struct Contact {
    var email: String

    mutating func updateEmail(new: String) {
        email = newEmail

Property Observers are also a helpful aspect of structs that let you run code before or after a property changes.

struct Balance {
    var account: String
    var balance: Int
    var amount: Int {
        didSet {
            print("\(account) now has a \(balance).")