Higher Order Functions

Higher-order functions are widely used for functional programming. Swift provides many built-in higher-order functions such as map, filter, reduce, and compactMap 1. map The map function transforms each element in a collection by applying a closure. 2. filter The filter function filters elements of a collection based on a condition. …

Associated Type(Generics in Protocol)

Associated types are placeholders that a protocol defines for the type it expects. The actual type is specified when a protocol is adopted. This allows the protocol to work generically with any type. Advantages of Associatedtype Realtime Example Using in API call

Generics

Generics in Swift allow you to write flexible, reusable, and type-safe code by enabling you to define functions, classes, structures, and enumerations that work with any type. Example of Generics Generic Function Example Explaination Generic Typealias Generics and Closures Generic Addition Function for Numeric Types Generic Function With Array Elements

Protocol Oriented Programming

Protocol-Oriented Programming (POP) is a programming paradigm in Swift that emphasizes the use of protocols to define shared behaviour and default implementations. It is an alternative to traditional Object-Oriented Programming (OOP) and promotes code reusability, flexibility, and type safety. Introduced by Apple in Swift 2.0, POP leverages Swift’s features like …

Extensions

Extensions in Swift are a powerful feature that allows you to add new functionality to an existing class, struct, enum, or protocol without modifying the original source code. Extensions can add methods, computed properties, initializers, and even conform types to protocols. Syntax Adding Computed Properties Extensions can add computed properties, …