Protocol Oriented Programming
Protocols, extensions, default implementations, PATs, protocol composition, type erasure
1What is a protocol in Swift?
What is a protocol in Swift?
คำตอบ
A protocol defines a set of properties and methods that a type must implement. It acts as a contract between the protocol and conforming types. Protocols enable interface definition without imposing inheritance hierarchies, promoting composition and code reusability.
2What is protocol conformance?
What is protocol conformance?
คำตอบ
Conformance means a type (class, struct, or enum) implements all required properties and methods from a protocol. A type can conform to multiple protocols simultaneously. Conformance establishes a type relationship independent of inheritance.
3What is a protocol extension?
What is a protocol extension?
คำตอบ
A protocol extension provides default implementations for protocol methods. All conforming types receive these implementations automatically without redefining them. This promotes code reuse and significantly reduces boilerplate.
How to define a protocol with a required property?
What is protocol inheritance?
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หัวข้อสัมภาษณ์ iOS อื่นๆ
Swift Basics
Swift Language Essentials
UIKit Fundamentals
UIViewController Lifecycle
UserDefaults & Keychain
Application Lifecycle
Auto Layout & Constraints
UITableView & UICollectionView
SwiftUI Basics
SwiftUI State Management
SwiftUI Navigation
Networking & URLSession
Codable & JSON Parsing
Core Data
MVVM Architecture
Push Notifications
Unit Testing & XCTest
UI Testing
Xcode & Build System
Swift Package Manager
Memory Management & ARC
Combine Framework
Concurrency & async/await
iOS Design Patterns
Performance Optimization
Security & Encryption
SwiftUI Advanced
iOS Application Architecture
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