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Difficulty: Advanced

Advanced Concurrency

When would you choose a Swift actor over a serial DispatchQueue?

Compare language-level isolation with traditional queue-based synchronization in production iOS code

Swift Concurrency Architecture

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Advanced SwiftUI

What is a maintainable way to model navigation in a growing SwiftUI app?

Move beyond demo-level stacks and discuss route modeling, feature boundaries, and testability

SwiftUI Architecture Navigation

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Advanced UIKit

How do you debug a UICollectionView cell reuse bug that only appears during fast scrolling?

Turn a vague rendering issue into a disciplined diagnosis around state leakage, async work, and view configuration boundaries

UIKit Debugging Performance

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