Author: Lead by code
Jul 26, 2024 interview
iOS Developer interview question Auto Layout and Constraints:
Auto Layout and Constraints: - What is Auto Layout, and why is it used in iOS development? Auto Layout is a system used in iOS development to create adaptive user interfaces that can dynamically adjust to different screen sizes, orientations,…
Jul 26, 2024 interview
iOS Developer interview question Protocol-Oriented Programming (POP)
Protocol-Oriented Programming (POP): - Discuss the principles of Protocol-Oriented Programming (POP). Protocol-Oriented Programming (POP) is a paradigm that emphasizes the use of protocols to define interfaces and behaviors, rather than relying solely on class inheritance. Introduced and popularized by Swift,…
Jul 26, 2024 iOS
iOS Developer interview question Advanced Swift Concepts
Advanced Swift Concepts - Describe the concept of option chaining in Swift. Optional chaining in Swift is a process that allows you to safely access properties, methods, and subscripts on optional types. If the optional contains a value, the property,…
Jul 26, 2024 interview
iOS Swift interview question Functions and Methods:
Functions and Methods: - What is a function in Swift, and how is it defined? In Swift, a function is a self-contained block of code designed to perform a specific task. Functions allow you to encapsulate logic, make your code…
Jul 26, 2024 interview
iOS Swift interview question Variables and Data Types:
Variables and Data Types: 1. Define the `var` and `let` keywords in Swift. In Swift, the var and let keywords are used to declare variables and constants, respectively. These keywords determine whether the value associated with a name can be…
Jul 26, 2024 interview
iOS interview question on ARC and Retain cycle
Memory Management: - Describe retain cycles in Swift and how to avoid them. Retain cycles in Swift occur when two or more objects hold strong references to each other, creating a cycle that prevents any of the objects involved from…
Jul 26, 2024 interview
iOS Developer interview question Advanced Swift Features
Advanced Swift Features: - What are key paths, and how are they used in Swift? Key paths in Swift are a powerful feature that provides a type-safe way to refer to properties of a type. They allow you to access…
Jul 26, 2024 iOS
iOS Developer interview question Error Handling and Optionals
Error Handling and Optionals: - What is the `throws` keyword used for in Swift? In Swift, the throws keyword is used to indicate that a function or method can throw an error. This mechanism allows you to signal that an…