Swift Interview Questions: How to Answer Like a Senior Developer
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Articles related to Swift interview questions
09 Jan, 2025
Advanced Swift Interview Questions
In Swift, async and await are keywords introduced in Swift 5.5 to simplify writing asynchronous code. These keywords help manage concurrency and make asynchronous programming more readable and less error-prone compared to traditional callback-based methods like closures.
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Swift Interview Questions for Developers
In Swift, multi-threading allows you to run tasks concurrently, making your application more efficient by allowing it to perform multiple operations at the same time. Swift offers several ways to implement multi-threading, using Grand Central Dispatch (GCD), Operation Queues, and async/await (introduced in Swift 5.5). These tools allow you to perform background work and update the UI on the main thread without blocking the user interface.
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Swift Interview Questions
In Swift, both classes and structures (struct) are used to create custom data types, but they differ in several key aspects, primarily in how they manage memory, behavior, and mutability. Understanding these differences is crucial for choosing the right type for your application.
09 Jan, 2025
Swift Interview Questions and Answers
In Swift, @IBOutlet and @IBAction are attributes used in iOS development with UIKit (or SwiftUI in some cases, although the syntax differs). These attributes are used to connect UI elements in Interface Builder (the visual tool within Xcode) to your Swift code, enabling interaction between your user interface (UI) and the logic of your application.
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Top Swift Interview Questions (2025)
In Swift, defer is a powerful control flow statement that allows you to execute a block of code just before the current scope exits, no matter how the scope is exited (whether through normal return, early exit due to an error, or other control flow mechanisms). The purpose of defer is to ensure cleanup code is always executed, even in the face of errors or early exits from functions.
09 Jan, 2025
Top Swift Interview Questions
In Swift, value types and reference types refer to how data is stored and passed around in memory, and how they behave when assigned to variables or constants, or when passed as arguments in functions. Understanding the distinction between the two is important for managing memory and understanding how data behaves in your programs.
09 Jan, 2025
Top Swift Interview Questions in 2025
Generics in Swift allow you to write flexible, reusable, and type-safe code that can work with any type. By using generics, you can define functions, methods, classes, and structs that can work with any data type while maintaining type safety. Generics enable you to write code that is more general and adaptable without compromising on type information or safety.
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Top Swift Interview Questions for 2025
In Swift, map, filter, and reduce are powerful higher-order functions that operate on collections (such as arrays, sets, etc.) and allow you to transform, filter, or combine values in a concise and functional programming style. These functions are commonly used to manipulate data in a functional programming way.
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