swift-expert

Async-await in Swift replaces callbacks with structured concurrency, enabling readable, type-safe concurrent operations. Use async functions with await to suspend work, actors to protect shared state, and Sendable conformance to prevent data races across tasks.

SwiftUI best practices combine async-await for data loading, @StateObject for lifecycle management, and protocol-oriented design to separate concerns. Use Sendable types in environment objects and conform to memory-safety constraints for reliable state updates.

Yes. Server-side Swift benefits from async-await for handling concurrent requests and actors for thread-safe resource management. Protocol-oriented design and Sendable conformance ensure performance and security across multi-target architectures.

Apply SwiftLint rules during development to enforce code style. Write DocComment annotations for every public API and use XCTest with coverage tracking to maintain threshold. Combine these with performance profiling to identify bottlenecks early.

Protocol-oriented design reduces coupling, improves testability, and enables polymorphism without inheritance. In Swift, protocols paired with extensions and generics support flexible, type-safe APIs across iOS, macOS, and server-side targets.

Yes. Sendable conformance is required by the type system to safely share values across actor boundaries and concurrent tasks. It prevents data races by ensuring only thread-safe types cross isolation domains.