Module 2 of 2 in Advanced Swift Techniques

Advanced Swift Concurrency

Jul 30 2025, Swift 6, iOS 18, Xcode 16.2
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Harness the power of Swift Concurrency through usage of async/await and suspending functions. Learn how Swift Actors can be used in concurrent environments. Explore the benefits of Swift 6 Language Mode and how it can enhance your code. By Zac Lippard.

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EXPERIENCE
Advanced level
EST TIME TO COMPLETE
32 mins
CONTENT
3 lessons
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Module outcomes

  • Understand how Swift suspends functions so other threads can do work
  • Learn how actors keeps multiple threads from accessing data
  • Explore how Xcode’s Swift 6 language mode enforces new rules and helps with migration.

Covered concepts

  • Async/Await
  • Swift Actors
  • Swift 6 Language Mode

Module content

1
Suspending Functions with Async/Await Lesson (12 mins)

In this lesson you will learn the foundational concepts of asynchronous programming in Swift using async and await. You will learn how Swift suspends functions, allowing other threads to perform work while waiting for asynchronous tasks to complete. This understanding forms the basis for creating efficient, non-blocking applications.

 Start
Introduction • Start Reading · 1 min
Instruction Reading · 11 mins
Conclusion Reading · 1 min
Quiz: Suspending Functions with Async/Await 4 questions
2
Swift Actors Lesson (12 mins)

In this lesson you will learn about Swift actors and how they help manage shared state with thread-safety. You will learn about the actor keyword and @MainActor attribute and how you can build upon existing async/await calls.

 Start
Introduction • Start Reading · 1 min
Instruction Reading · 11 mins
Conclusion Reading · 1 min
Quiz: Using Swift Actors 4 questions
3
Swift 6 Language Mode Lesson (8 mins)

In this lesson you will learn about Swift 6’s new language mode. It is designed to enforce stricter concurrency checks, helping you write safer and more predictable code.

 Start
Introduction • Start Reading · 1 min
Instruction Reading · 7 mins
Conclusion Reading · 1 min
Quiz: Xcode’s Swift 6 Language Mode 4 questions