Enums in Swift Enums (short for enumerations) in Swift allow you to define a common type for a group of related values and work with those values in a type-safe way within your code. Enums in Swift can have associated values, raw values, and can also conform to protocols. I will explain the different aspects…
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What is Higher-Order Functions in Swift ? Higher-order functions in Swift are functions that take other functions as arguments or return functions as their results. They are powerful tools in functional programming and can help make your code more expressive and concise. Common Higher-Order Functions in Swift map In Swift, the map function transforms each…
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One of the major differences between structs and classes is how they handle constants. When an instance of a struct is declared as a constant (using let), all its properties become constant, even if they are declared as variables within the struct. To modify the properties of a struct, you need to mark methods with…
Delegate Pattern in Swift The delegate pattern in Swift is a design pattern that enables one object to act on behalf of another. It is commonly used to establish communication between two objects, where one object (the delegate) delegates certain responsibilities or actions to another object. Here’s a step-by-step explanation of how the delegation pattern…
resueIdentifier in Swift The reuseIdentifier in Swift is a property associated with table view cells in a UITableView. It is used to improve the performance and efficiency of table views, particularly when dealing with a large number of cells. When you scroll through a table view, cells that go off-screen are often reused for new…
Data Source and Delegate in Swift Data Source and delegate in Swift, both are design patterns that facilitate communication and interaction between objects. Here’s a concise summary of the differences between a data source and a delegate: 1. Delegate : Pattern: A delegate is a design pattern where one object delegates some…
Dictionary in Swift: Q.1 What is a dictionary in Swift? Ans. A dictionary in Swift is a collection type that stores key-value pairs. Each value in the dictionary is associated with a unique key, and you can use the key to retrieve the corresponding value. Dictionaries in Swift are unordered collections, meaning the order of…
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@objc Attribute in Swift: By default, Swift generates code that is only accessible to other Swift code. However, when you need to interact with Objective-C code or frameworks (such as UIKit), you use @objc to explicitly instruct Swift to make certain classes, methods, properties, or other entities available to Objective-C as well as Swift code….
Q. What’s the difference between Sync and Async tasks in iOS? Difference between Sync and Async tasks in iOS: In iOS development, the terms “sync” (synchronous) and “async” (asynchronous) refer to the way tasks or operations are executed with respect to the flow of the program. Understanding the difference is crucial for designing responsive and…
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Q. What is a protocol and what are the benefits of using a protocol? Protocols And Their Benefits: A protocol defines a blueprint of methods, properties and other requirements that suit a particular task or piece of functionality. The protocol than can be adopted by a class, structure, or enumerations to provide actual implementations of…
