Secure login with iCloud Keychain verification codes - WWDC 2021 - Videos - Apple Developer
developer.apple.com/videos/play/wwdc2021/10105/Learn how you can support on-device verification codes in your app or website for a more secure sign-in experience. We'll explore the...
iOS Ref
iosref.com/Quick reference tables, tools, and links for iOS developers. iOS Ref has iOS compatibility tables, a beautiful Swift cheatsheet, a hex code to UIColor converter, device screen resolution tables, and more.