This tutorial is part of the Swift series. The while loop in Swift is used to iterate over a block of code as long as a certain condition is true. The loop will continue running as long as the condition remains true. The basic syntax of a while loop is as follows: while condition { // statements to be executed } The condition is evaluated before the loop block is executed....
Welcome to another installment of our Swift series! In this tutorial, we will be diving into the repeat-while loop. Similar to the while loop, the repeat-while loop executes a block of code repeatedly based on a given condition. However, the key difference lies in the fact that the condition is checked after the loop block is executed. This ensures that the loop block is executed at least once before the condition is evaluated....
In Swift, when writing software, you typically use multiple files to build complex programs. To organize and manage these files, Swift provides a powerful feature called modules. Modules serve two main purposes: code reuse and code encapsulation. By grouping related code into modules, you can write a particular functionality once and then import it into different places and projects. This promotes efficiency and reduces duplication. Moreover, encapsulation ensures that the internal working of a module remains hidden while exposing only necessary components to the outside....
Introduction Welcome to the Swift Objects tutorial, which is part of our Swift series. In Swift, everything is treated as an object, even basic values like numbers. This means that every value can receive messages and have associated functions called methods. Messages and Methods In Swift, each type can have multiple methods associated with it. For example, the number value 8 has a isMultiple method that can be called to check if it is a multiple of another number....
In Swift, there is a wide range of operators that can be used to perform operations on values. These operators can be divided into different categories based on the number of targets they have and the kind of operation they perform. Unary, Binary, and Ternary Operators Operators are categorized based on the number of targets they have. Unary operators have one target, binary operators have two targets, and the ternary operator is the only one with three targets....
Optionals play a crucial role in Swift programming. They allow us to handle situations where a value may or may not be present. By declaring a type as optional, we indicate that it may contain a value or be absent. To declare an optional, we add a question mark (?) after its type. For example: var value: Int? = 10 In this case, value is not directly an Int but an optional that wraps an Int value....
Protocol in Swift allows different objects of different types to have a common set of functionality. It serves as a blueprint that defines a set of properties and methods that can be adopted by structs and classes. To define a protocol in Swift, use the following syntax: protocol Mammal { } Structs and classes can adopt a protocol by indicating it after the colon: struct Dog: Mammal { } class Cat: Mammal { } A protocol can define properties and methods but does not provide values or implementations....
Tags: Swift, Sets, Arrays, Collections Sets are a powerful tool in Swift for creating collections of unique items. Unlike arrays, which can contain repeated elements, a set ensures that each element is unique. In this tutorial, we will explore how to use sets in Swift and their various features. To declare a set of Int values, you can use the following syntax: let set: Set<Int> = [1, 2, 3] Alternatively, you can initialize a set from an array:...
Structures are a fundamental concept in Swift programming. They are widely used and even the built-in types in Swift are implemented as structures. In Swift, we can create instances of structures, which are known as objects. In most programming languages, objects can only be created from classes. However, Swift provides the flexibility to create objects from structures as well. In fact, the official documentation recommends using structures whenever possible because they are easier to work with....
Tags: Swift, Tuples, Data organization, Function returns Tuples are a valuable feature of the Swift programming language that allow you to group multiple values into a single collection. With tuples, you can easily organize and manage related data in a concise and efficient manner. To create a tuple, you declare a variable with the desired values enclosed in parentheses. For example, you can define a dog variable with a String and an Int value like this:...