devmjun

po String.init(data: response.data!, encoding: NSUTF8StringEncoding)

devmjun

var version: String? {
    guard let dictionary = Bundle.main.infoDictionary,
        let version = dictionary["CFBundleShortVersionString"] as? String,
        let build = dictionary["CFBundleVersion"] as? String else {return nil}
    
    let versionAndBuild: String = "vserion: \(version), build: \(build)"
    return versionAndBuild
}

devmjun

public func example(of description: String, action: () -> Void) {
  print("\n--- Example of:", description, "---")
  action() 
}

devmjun

import RealmSwift

public struct RealmDB {
    public static var realm: Realm? {
        do {
            return try Realm()
        }catch {
            print("error \(error.localizedDescription)")
            return nil
        }

devmjun

func log(message: String) {
  let thread = Thread.current.isMainThread ? "Main": "Background"
  print("\(thread) thread: \(message)")
}
    
func addNumbers(upTo range: Int) -> Int {
  log(message: "Adding numbers...")
  return (1...range).reduce(0, +)
}
    

devmjun

let now = Date()
let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
currDate.text = dateFormatter.stringFromDate(now)

devmjun

CFRunLoopGetCurrent()

devmjun

ProcessInfo.init()

devmjun

var timer: DispatchSourceTimer?

private func startTimer() {
    let queue = DispatchQueue(label: "kr.mjun", attributes: .concurrent)
    // cancel previous timer if any
    timer?.cancel()        
    timer = DispatchSource.makeTimerSource(queue: queue)
    timer?.schedule(deadline: .now(), repeating: .seconds(5), leeway: .milliseconds(100))
    // `[weak self]` only needed if you reference `self` in this closure and you want to prevent strong reference cycle
    timer?.setEventHandler { [weak self] in 

devmjun

// 1
var wifiConfiguration: NEHotspotConfiguration?

// 2
wifiConfiguration = NEHotspotConfiguration(
            ssid: wifiName,
            passphrase: wifiPassword,
            isWEP: false)
        wifiConfiguration?.lifeTimeInDays = 365 
        wifiConfiguration?.joinOnce = false