jeksys

import UIKit
import SwiftUI

// SwiftUI
struct SomeView: View, HostingViewInitialization {
  
    var body: some View { 
        Text("Hello World!") 
    }
}

jeksys

import UIKit
import WebKit

class WebViewController: UIViewController, WKNavigationDelegate {

    var webView: WKWebView!
    private let url: URL

    init(title: String, url: URL) {
        self.url = url

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protocol Storable {
    func get<T: Codable>(key: String) -> T?
    func remove(for key: String)
    func add<T: Codable>(object: T, key: String)
    func update<T: Codable>(object: T, key: String)
}

class UserDefaultsStorage: Storable {
    
    static let shared = UserDefaultsStorage()

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#if DEBUG
    setDebugLevel(level: .debug, for: .generic)
    setDebugLevel(level: .info, for: .network)
#endif

func setDebugLevel(level: DebugLevel?, for space: DebugSpace) {
    #if DEBUG
        LogManager.shared.debugLevel[space] = level
    #endif
}

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Vancouver: Salary: 90,000 Total Taxes: 22,278
Seattle: 90,000, Total Taxes: 19,860, Medical insurance: $500 X 12



https://smartasset.com/taxes/income-taxes#Kha75LrjSO
https://simpletax.ca/calculator

jeksys

What's concurrency

Concurrency means running more than one task at the same time.

What is a race condition?

When you have two threads changing a variable simultaneously. It’s possible to get unexpected results. Imagine a bank account where one thread is subtracting a value to the total and the other is adding a value.

What's thread safe in Swift

Nothing in Swift is intrinsically threadsafe

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class ImageScalerTests: XCTestCase {
    func testScalingProducesSameAmountOfImages() {
        let scaler = ImageScaler()
        let originalImages = loadImages()

        // Create an expectation
        let expectation = self.expectation(description: "Scaling")
        var scaledImages: [UIImage]?

        scaler.scale(originalImages) {

jeksys

import Foundation

extension CustomStringConvertible {
    var description: String {
        var description: String = "\(type(of: self))("
        
        let selfMirror = Mirror(reflecting: self)
        
        for child in selfMirror.children {
            if let propertyName = child.label {

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post_install do |installer|
  installer.pods_project.targets.each do |target|
    if ['Pod name'].include? target.name
      target.build_configurations.each do |config|
        config.build_settings['SWIFT_VERSION'] = '4.2'
      end
    end
  end
end

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    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        
        if isMovingToParent {
            print("isMovingToParent")
            // this view controller is becoming visible because it was just push onto a navigation controller or some other container view controller
        } else if isBeingPresented {
            print("isBeingPresented")
            // this view controller is becoming visible because it is being presented from another view controller
        } else if view.window == nil {