saoudrizwan

import os.log

os_log("[%{public}@/%{public}@:%{public}@] This is an error message", log: OSLog(subsystem: "my.system", category: "Networking"), type: OSLogType.error, ("\(#file)" as NSString).lastPathComponent, "\(#function)", "\(#line)")

// Alternatively use a global helper method

enum LogCategory: String {
    case `default` = "Default"
    case networking = "Networking"
}

saoudrizwan

struct Message {
  let id: String
  let body: String
}

let messages = [Message(id: "1", body: "..."), Message(id: "2", body: "..."), Message(id: "3", body: "...")]
// or retrieve your messages from Disk...
let messages = try! Disk.retrieve("messages.json", from: .documents, as: [Message].self)

var messagesWithoutIdOf2 = [Message]()

saoudrizwan

let logs = ["Error", "Created", "Crashed"]
logs.forEach { print($0) }
// prints "Error"
// prints "Created"
// prints "Crashed"

saoudrizwan

let sameUrl = URL(string: "https://i.redd.it/dj4bz294zqhz.png")!

TaskManager.shared.dataTask(with: sameUrl) { (data, response, error) in
    // ...
}

TaskManager.shared.dataTask(with: sameUrl) { (data, response, error) in
    // ...
}

saoudrizwan

import Foundation

class TaskManager {
    static let shared = TaskManager()
    
    let session = URLSession(configuration: .default)
    
    typealias completionHandler = (Data?, URLResponse?, Error?) -> Void
    
    var tasks = [URL: [completionHandler]]()

saoudrizwan

import UIKit

var feedbackGenerator : UISelectionFeedbackGenerator? = nil

@IBAction func gestureHandler(_ sender: UIPanGestureRecognizer) {
    switch sender.state {
    case .began:
        // Instantiate a new generator
        feedbackGenerator = UISelectionFeedbackGenerator()
        

saoudrizwan

import UIKit

class ResponsiveView: UIView {
    override var canBecomeFirstResponder: Bool {
        return true
    }
}

class ViewController: UIViewController {
    

saoudrizwan

let saveMenuItem = UIMenuItem(title: "Save", action: #selector(saveTapped))
let deleteMenuItem = UIMenuItem(title: "Delete", action: #selector(deleteTapped))
UIMenuController.shared.menuItems = [saveMenuItem, deleteMenuItem]

@objc func saveTapped() {
    // ...
}

@objc func deleteTapped() {
    // ...

saoudrizwan

// Add our responsive view to a super view
let responsiveView = ResponsiveView(frame: CGRect(x: 100, y: 300, width: 50, height: 50))
self.view.addSubview(responsiveView)

// make responsiveView self.view's super window's first responder
responsiveView.becomeFirstResponder()

// Set up the shared UIMenuController
let menu = UIMenuController.shared
menu.arrowDirection = .default // up, down, left, right

saoudrizwan

import UIKit

class ResponsiveView: UIView {
    override var canBecomeFirstResponder: Bool {
        return true
    }
}