lamprosg

//https://www.hackingwithswift.com/articles/233/whats-new-in-swift-5-5

// - OLD WAY

func fetchWeatherHistory(completion: @escaping ([Double]) -> Void) {
    // Complex networking code here; we'll just send back 100,000 random temperatures
    DispatchQueue.global().async {
        let results = (1...100_000).map { _ in Double.random(in: -10...30) }
        completion(results)
    }

lamprosg

/// The list of the onboarding steps
enum OnboardingStep: String {
    case overview
    case documentScan
    case saveAndLogin
}

/// The onboarding errors
///
/// - failed: Onboarding failed with the described error

lamprosg

import SwiftUI

@main
struct MyMainApp: App {
    var body: some Scene {
        WindowGroup {
            MainView.build()
        }
    }
}

lamprosg

//Time complexity:O(N), Space complexity: (1)

func findCommonSuper(_ view1:inout UIView, _ view2:inout UIView) -> UIView? {
    //Get the level of the 2 views
    var level1 = findLevel(view1)
    var level2 = findLevel(view2)
    
    /****/
    //Find the 2 views for the same level
    if level1 > level2 {

lamprosg

/*
Content loading is at least three stage process:

- Before the loading starts there is the initial moment.
- The actual process of loading content. We need to present some progress or activity indication in the UI;
- And finally the result, success or failure.

SwiftUI encourages creating small, reusable views, and use composition to create the complete picture.
Each stage of the content loading process will require a view. The container view will compose the result.
*/

lamprosg

//https://nshipster.com/device-identifiers/
//Besides identifierForVendor..

/*
Locale information is the greatest source of identifying information on Apple platforms.
The combination of your preferred languages, region, calendar, time zone,
and which keyboards you have installed say a lot about who you are
especially if you have less conventional preferences.
*/

lamprosg

import UIKit

// Call CGImage mechanism from a UIImage
@objc extension UIImage {

    var isDark: Bool {
        self.cgImage?.isDark ?? false
    }
}

lamprosg

VIP / Clean Swift
//https://zonneveld.dev/the-clean-swift-architecture-explained/
-------------------

VC 	         -> Asks the Interactor for an action.

Interactor       -> Business logic | Can write unit tests against it.
		    Will also handle requests and return object to the presenter
                    
Presenter        -> Presentation | Parse the object to a view model and give it to the VC to be displayed.

lamprosg

//https://swiftrocks.com/writing-cleaner-view-code-by-overriding-loadview.html

/// The HasCustomView protocol defines a customView property for UIViewControllers to be used in exchange of the regular view property.
/// In order for this to work, you have to provide a custom view to your UIViewController at the loadView() method.
public protocol HasCustomView {
    associatedtype CustomView: UIView
}

extension HasCustomView where Self: UIViewController {
    /// The UIViewController's custom view.

lamprosg

//Documentation
//https://blog.scottlogic.com/2015/02/05/swift-events.html

//KVO example (not shown in this gist)
//https://blog.scottlogic.com/2015/02/11/swift-kvo-alternatives.html

public class Event<T> {

  public typealias EventHandler = T -> ()