Comparing Architectures The Coordinator Pattern Ios Interview Booklet 10 4

Summary

Every state change in the whole app happens in one place, as a named action, and every one can be tested step by step. Singletons are everywhere in Apple's frameworks, and every senior engineer has a warning about them. Both are right. Most real apps are half UIKit and half SwiftUI. So interviewers always ask: how do you make them talk to each other? Takeaway: ... Simple factory, factory method, abstract factory. Three names that confuse most candidates. Takeaway: Factory decides *which* ... Replace Core Data with SwiftData, and your business logic doesn't change a single line. That's the promise of Clean NavigationView is deprecated. NavigationStack changed how SwiftUI navigates. Takeaway: Navigation = state: a path Change a copy, and the original changes too. Or doesn't. Takeaway: struct = copy, class = share. Default to struct; mutating marks ...