2020-12-06nshipster.com: How to comment swift code, codestyling swifttutorial2020-10-18marcosantadev.com: CALayer And Auto Layout With Swift developmentiosswift2019-11-30medium.com: Singleton Class in Swift swiftios2017-03-08mentormate.com: explore code samples for iOS 10 features in objective-c and swift 3.0 iosobjective cswift