iOS Swift Interview Questions & Answers

In the series you will have access to 4 parts of iOS interview questions and answers with explanation. Then in second section we will look into Swift data structure with implemations as well. Then in last section i will share the list of must do leetcode questions to clear any iOS interview. So if you are preparing for iOS interview, then this is a must do course for you!

Course Overview –

Section 1:

• iOS Interview Questions & Answers with Explanation – PART 1
  • What is optional in Swift?
  • What is double questions?
  • What is Optional chaining?
  • What is Optional Binding?
  • Delegate Vs Notifications
  • Class Vs Struct
  • What is Enum?
  • What is Guard?
  • What is Defer?
  • What is ARC?
• iOS Interview Questions & Answers with Explanation – PART 2
  • MVVM
  • Dynamic Dispatch
  • Dynamic Dispatch Vs Static Dispatch
  • Closure
  • @escaping & @nonescaping
  • What is lazy?
  • [unowned self] & [weak self]
  • Process & Threads
  • Operation & GCD
  • Operation
  • OperationQueue
  • GCD – Grand Central Dispatch
  • What does DispatchGroup do?
  • Codable & Decodable
• iOS Interview Questions & Answers with Explanation – PART 3
  • Any vs AnyObject
  • Access Specifier for swift
  • Generics
  • Core Data Stack
  • Fetch and Add operation for core data
  • Why to use NSFETCHEDRESULTSCONTROLLER?
  • POP: Protocol Oriented Programming
  • KVC & KVO
  • Content Hugging & Compression resistance
  • Remote Push Notification
  • Remote Push Notification – Checklist
  • Singleton Pattern
  • Why Singleton Pattern is bad?
  • Dependency Injection
• iOS Interview Questions & Answers with Explanation – PART 4
  • What is viewDidLayoutSubviews?
  • What is loadView?
  • NSArray Vs Array
  • NSDictionary vs Dictionary
  • NSNumber vs Int
  • Example of Strong & Weak
  • Computed and Stored Properties
  • Property Observer for computed properties
  • Can we use computed or stored properties in extension?
  • Can we write extension for struct/enum/protocol?
  • Is Optional an Enum?
  • Sync vs Async : deadlock situation
  • What is Semaphore?

Section 2 :

• SWIFT DATA STRUCTURE
  • Swift String
  • Swift Collections
  • Quick Sort Swift Implementation
  • Linked List Swift Implementation
  • Stack Swift Implementation
  • Queue Swift Implementation
  • Tree Swift Implementation

Section 3 :

• Summary & Leetcode
  • Course Summary
  • 60 must do leetcode questions list
  • Bonus

I will keep adding more questions in this course to keep this updated. I hope to see you in this course. Good Luck for your interview!