Swift Retention Cycle in Closures and Delegate | by Bob Lee | Bob the DeveloperLet’s understand [weak self], [unowned self] , and weak var ProblemWhen I encountered closures and delegate for the first time, I’ve noticed people put [weak self] in closures and weak var in front a delegate property. I’ve wondered why. PrerequisiteThis isn’t a tutorial for beginners. The following list is what I expect from my readers to know. How to pass data between view controllers with Deleg
