iOS

URLSession — Swift

URLSession is a class in the Foundation framework of Apple’s iOS and macOS operating systems. It provides an API for communicating with HTTP and HTTPS servers. With URLSession, you can make asynchronous network requests, download or upload data, and handle the responses from the server…

UndoManager — Swift

The Undo Manager in Swift is a mechanism used for managing undo and redo operations in an application. It allows users to revert changes made to a document or data if desired. The undo manager tracks changes made to a document or data and allows users to undo or redo those changes. It can be…

Singleton pattern — Swift

The Singleton pattern is a design pattern that restricts the instantiation of a class to only one instance, while providing a single point of access to that instance for all other objects. It is often used to ensure that there is only one instance of a class that manages a shared…

iOS Lifecycle

In iOS development, the lifecycle of a view controller in Swift refers to the series of methods that are called as the view controller is created, displayed, and dismissed. These methods include:

viewDidLoad(): Called when the view controller's view is first loaded into memory…

Pagination in Swift

Pagination in Swift refers to the process of breaking up a large dataset into smaller, manageable chunks or pages. This is often used in iOS apps to improve performance and reduce memory usage when displaying large amounts of data, such as in a table or collection view. One common approach to…

CompactMap vs FlatMap — Swift

Map

Map is a function in Swift that takes an array and applies a given closure (a block of code) to each element of the array, returning a new array containing the results. The closure is passed each element of the original array one at a time, and…

Optional in iOS

Optional chaining in Swift is a feature that allows you to access properties, methods, and subscripts on an optional value (a…

VIPER design pattern — iOS

VIPER is an acronym for View, Interactor, Presenter, Entity, and Routing…

MVVM — iOS

Model-View-ViewModel (MVVM) is a design pattern that is similar to Model-View-Controller…

Struct vs Class — Swift

Struct

In Swift, structs are used to define custom data types that hold a collection of…