edvinassabaliauskas

import Dispatch

private var throttleItems = Atomic([AnyHashable: ThrottleItem]())
private var debounceItems = Atomic([AnyHashable: DebounceItem]())

extension DispatchQueue {
  
  /// First action is executed, then other actions will be performed at most once per specified interval.
  /// - Note:
  ///     Only the first call's `interval` is taken into account and updated every interval.

yusuke024

import UIKit

import AVFoundation

class ViewController: UIViewController {
    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)

        switch AVCaptureDevice.authorizationStatus(for: .video) {
        case .notDetermined: