DispatchGroup in Swift offers a simple solution for synchronizing multiple unrelated asynchronous operations. It allows tracking the completion of various tasks, even on different queues, without complex setups. This approach avoids messy and non-scalable code, making it ideal for handling multiple asynchronous tasks efficiently.
Note — This article is now outdated. There’s a new article with updated info here. When working on a project not too long ago, My teammate and I came across the following situation. We started developing the project on Swift 2.0 and moved over to 2.1 with the released of Xcode 7.1. We used a class conforming to the NSCoding protocol to store the basic information about the app’s user....