Infosys IOS Developer Interview Questions, Process, and Tips

Struct is a value type, Class is a reference type in Swift.

• Structs are passed by value, Classes are passed by reference.

• Structs are immutable by default, Classes are mutable.

• Use Structs for simple data types, Classes for more complex objects.

ARC (Automatic Reference Counting) in Swift is a memory management system used to automatically manage memory allocation and deallocation.

• ARC keeps track of how many references there are to an object and automatically deallocates it when there are no more references.

• Use strong reference cycles can lead to memory leaks, so use weak or unowned references to break the cycle.

• ARC is the default memory management system in S...read more

MVVM (Model-View-ViewModel) is an architectural design pattern commonly used in iOS development to separate concerns and improve code maintainability.

• MVVM separates the user interface (View) from the business logic (ViewModel) and data (Model).

• ViewModel acts as an intermediary between the View and the Model, handling user interactions and updating the data.

• Swift provides tools like Combine framework for reactive progra...read more