Basic Swift interview question and answer

Introduction:

Welcome to the Nithra jobs! This quiz is designed to test your knowledge and understanding of the Swift programming language. Whether you're a beginner or an experienced developer, this quiz will challenge you with a variety of questions that cover fundamental concepts, syntax, best practices, and more. Swift has become one of the most popular languages for developing iOS, macOS, watchOS, and tvOS applications, so having a solid grasp of its features is essential for anyone in the world of app development. Are you ready to put your Swift skills to the test? Let's dive in and see how well you know this versatile and powerful language!

1. Who is introduced swift programming language? Chris Lattner

2. When Swift programming language was initially Released? June 2014

3. What is a Swift protocol? A blueprint for a class, struct, or enumeration

4. What is the Difference Between Class and Struct in Swift? A class is a reference type, and a struct is a value type.

5. What are the how many control transfer statements in Swift? Five

6. What are the Types of Collections in Swift? arrays, sets, and dictionaries

7. What are Enums in Swift? define a common type for a group of related values

8. What is the switch command used to turn on the swift? toggle( )

9. What does the question mark in Swift mean? used in property declaration

10. What Is a Tuple in Swift? group of different values

11. What is an optional in Swift? constant or variable that can hold a value OR no value.

12. In Swift, the expression that generates the closure is named ____. In other languages, it is also known as lambda or anonymous function. Closure Expression

13. Do single-line comments in Swift start with _______? two forward-slashes

14. _________ is the set of objects that are given the chance to react to the event. Responder Chain

15. What is a type alias in Swift? A way to define a new name for an existing type.

16. What is a guard-let statement in Swift? A way to define a conditional statement that executes if a condition is true and unwraps an optional.

17. Constants are declared by using _____ keyword and variables by _______ keyword. let, var

18. How many types of classes in Inheritance in Swift? 2

19. The incorrect value type of the swift is. Class

20. The Swift Incorrect Data Type is: char

21. How many types of collections are there in Swift? 3

22. The IDE used in Swift is ______. Xcode

23. In Swift, we use the keyword _____ to create constant values. Let

24. Swift is which type of language? high-level general-purpose, multi-paradigm, compiled programming language

25. What is a computed property in Swift? a value that can be derived from other stored value

Conclusion:

Congratulations, you've completed the Swift Programming Quiz! Whether you aced every question or encountered a few challenges along the way, taking the time to engage with this quiz demonstrates your commitment to mastering Swift. This language's importance in modern app development cannot be overstated, and by enhancing your knowledge of Swift, you're better equipped to create innovative and efficient applications across various Apple platforms. Remember, programming is a continuous learning journey, and every bit of knowledge gained contributes to your growth as a developer. Keep coding, keep experimenting, and keep refining your Swift skills. Your journey to becoming a Swift maestro has just begun!