Classes

In this Swift tutorial, I’ll show you how to add new functionality to existing Swift classes using class extensions. It’s a powerful feature in Swift that lets you add your own methods or computed properties to already-defined classes, making them more versatile. Let’s start with a very simple example. Creating a Simple Extension In Swift,…

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Swift provides powerful tools for comparing and equating custom objects using the Comparable and Equatable protocols. In this tutorial, we will explore how to use the Comparable protocol to compare custom objects based on their properties, and the Equatable protocol to determine whether two objects are equal. By the end of this tutorial, you will…

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The below code example in Swift demonstrates how you can extend classes in Swift. Extending Class in Swift As an example, let’s learn how we can extend class Int.  Create a new Swift file in your current project and add there the following extension with a function that substructs a value. extension Int { func…

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The below Swift code example demonstrates how to implement the Singleton Design Pattern in Swift. Singleton Design Pattern guarantees that only one Object of a class exists in the system even if a developer attempts to create multiple instances of it. Singleton Class example in Swift // Creating Singleton // Only one instance of this…

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In Swift, a class or a struct can have multiple initializers which are used to create an instance of that particular type and set up its initial state. The code examples below show how to define a class with single or multiple initializers and how to create an instance of that class. Single Initializer class…

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