Blogs

Inheritance is a fundamental concept in many programming languages, including Swift, allowing developers to reuse code efficiently and create hierarchical relationships between types. Swift handles inheritance differently for classes, protocols, and structs, each offering unique features and constraints. In this blog, we’ll explore how inheritance works for these types in Swift, complete with examples and illustrations.

Swift’s Codable protocol provides a powerful and convenient way to encode and decode data. It combines the capabilities of both Encodable and Decodable protocols, allowing seamless conversion between data formats (like JSON) and Swift objects.

In Swift, UserDefaults is a convenient class for storing small, persistent data like user preferences and app settings. While UserDefaults is typically used for basic data types such as String, Int, Bool, Array, and Dictionary, it doesn’t directly support storing custom objects. However, with Swift’s Codable protocol, we can easily save and retrieve custom objects in UserDefaults. In this blog, we’ll explore how to do just that, step-by-step, and look at best practices along the way.

In Swift, UserDefaults provides a straightforward way to store small amounts of data that need to persist across app launches, such as user preferences or settings. It’s a great tool for saving simple data types like String, Int, Bool, and even collections such as Array and Dictionary. In this blog, we’ll cover the basics of UserDefaults, how to use it, best practices, and a guide on creating a UserDefaultsManager to simplify your usage further.

In Swift, both OptionSet and enum are common patterns for representing options or states. While they share some similarities, they serve different purposes and have distinct use cases. In this blog, we’ll explore OptionSet and enum in Swift, examine their unique characteristics, and look at practical examples to help clarify when to use each.

In Swift, an OptionSet is a powerful way to represent a collection of unique options or flags using a bitwise format. OptionSet works especially well when you need to define multiple independent settings or features, such as configuration options, permissions, or state indicators. This blog post will explore what OptionSet is, how to use it, and some practical examples to demonstrate its capabilities.

Swift’s type system offers powerful tools to handle abstraction and flexibility, including Opaque Types and Generics. While both serve to manage and generalize types, they work differently and are used in distinct scenarios. In this post, we’ll explore their differences, use cases, and examples to understand when to use one over the other.

An LRU (Least Recently Used) Cache is a data structure that keeps track of the most recently used items and efficiently removes the least recently used ones when it reaches capacity. It’s commonly used to optimize memory usage in systems that handle large data sets by retaining only frequently accessed items.

Access control is a fundamental feature in Swift that allows you to define the visibility and accessibility of various parts of your code. By using access modifiers, you can encapsulate implementation details and restrict unintended access to your code, ensuring safety and modularity.

Swift is known for its powerful type system and support for generics, which allows you to write flexible and reusable code. However, there are situations where generics can become overly complex or expose too much internal detail. To help with this, Swift introduced opaque types (using the some keyword) in Swift 5.1. Opaque types allow us to hide the underlying type while still maintaining strong type safety.

Swift 5.7 introduced two powerful keywords, some and any, to work with protocols in generic programming. Although they serve different purposes, they both deal with protocols and types. If you’re unfamiliar with how to use them or what sets them apart, this blog post will clarify their differences and show you practical examples.

Swift provides a powerful way to work with collections through ranges, which define a sequence of values with a start and an end. In addition to the traditional closed (...) and half-open (..<) ranges, Swift introduces one-sided ranges, a feature that makes working with sequences and collections more flexible and concise.

When building user interfaces in iOS applications, UIKit provides a wide array of components, each designed for specific use cases. Three of the most commonly used UI components are UIButton, UILabel, and UIImageView. These components share a common ancestor in the UIKit class hierarchy but serve different purposes and exhibit different behaviors.

Error handling is an essential feature of modern programming languages, allowing developers to gracefully manage runtime issues without crashing an app. Swift has a robust error-handling system based on the concepts of throwing, catching, propagating, and handling errors. In this blog, we will explore how error handling works in Swift using try, catch, and throws with detailed explanations and practical examples.

In Swift, working with floating-point numbers often requires you to round values to their nearest whole number or perform specific types of rounding. The three primary functions that help with this are:

Swift’s powerful generics system allows developers to write flexible and reusable code. One of the core features of generics is associated types, which are used in protocols to define placeholder types that get specified later when the protocol is adopted by a class, struct, or enum. Understanding associated types is crucial when working with Swift’s protocols, and in this blog, we’ll explore their concept, usage, and real-world examples.

Property observers in Swift are an incredibly useful feature that allows you to monitor and respond to changes in a property’s value. They are especially handy when you want to perform additional tasks whenever a property is set or updated, such as updating the UI, logging data, or enforcing business logic.

In Swift, the count(where:) method is a powerful tool for filtering and counting elements in a collection that meet specific criteria. This method is part of the Swift Standard Library’s extensions to Sequence and allows for a concise and expressive way to determine how many elements in a collection match a given predicate.

In Swift, initializers are fundamental building blocks that allow you to create instances of classes, structures, and enumerations by setting up their initial state. Swift’s initializer syntax is expressive and versatile, offering a variety of ways to customize instance creation.

Thread safety refers to a programming concept where data or resources are accessed and modified in a way that ensures correct behavior and prevents conflicts when multiple threads (concurrent execution units) are working with the same data simultaneously. In multi-threaded environments, without proper thread safety measures, unpredictable and erroneous behavior can occur due to race conditions and data inconsistencies.