Swift Tutorial

1. Swift Introduction

What Swift is, Apple's platforms plus server-side Swift, installing it, and hello world.

2. Syntax and Variables

let vs var, optionals with if let and guard let, basic types, and control flow in Swift.

3. OOP in Swift

Struct vs class value/reference semantics, protocols, extensions, and protocol-oriented programming.

4. Advanced Swift

Closures, generics, error handling with throws/try/catch, and ARC and retain cycles.

5. Concurrency with async/await

async/await, Task, async let, TaskGroup, and actors for safe shared mutable state.

6. Testing in Swift

XCTest, XCTestCase with setUp/tearDown, assertions, and testing throwing and async code.

7. Swift Interview Questions

Real Swift interview questions and answers on structs vs classes, optionals, and ARC.