The Swift Standard Library currently implements the three most essential general-purpose data structures: Array, Set and Dictionary. These are the right tool for a wide variety of use cases, and they are particularly well-suited for use as currency types. But sometimes, in order to… Continue Reading
Protocols with associated types are a powerful, if somewhat treacherous, feature of Swift. Sometimes it’s fair to say that the only winning move is not to play it. As an example here is a recursive protocol of binary tree node… Continue Reading
The producer–consumer problem also known as the bounded-buffer problem is a classic example of a multi-process synchronisation problem. It is defined as follows: The Producer generates items in random time intervals and writes them into a bounded buffer. The Consumer consumes these items… Continue Reading
Swift is a programming language that is designed to work with Apple’s ecosystem. However, it can run on Linux. It is not just written for Apple products. If you do not have Mac hardware or you do not want to… Continue Reading
Xcode Playgrounds help developers explore Swift language and Apple framework APIs and provide a scratchpad for experimentation. Since Xcode 12 playgrounds have been integrated with the new build system and can also used with Frameworks and Package dependencies. As long… Continue Reading
Georgina loves making up weird sequences. Here is her latest: “1 2 4 8 10 20 22 44 46 92 94 188 190 380…” Write a program that finds the sum of the first 150 numbers in Georgina’s series. There… Continue Reading
Knowing the type and meta-type in Swift is not as common as in Smalltalk or Objective-C. Where in objective-c, you can instantiate an object out of a class name or modify classes at runtime this is not possible in Swift.… Continue Reading
The Cocoa frameworks and the Model-View-Controller pattern go hand in hand. A typical iOS application, for example, is composed of models, views, and view controllers. The model and view layers are glued together by the controllers of the application. Those… Continue Reading
In this article, you’ll learn all about encoding and decoding Dates in Swift to JSON, exploring the basics and advanced topics like custom dates and custom encoding. Overview Many programming tasks involve sending data over a network connection, saving data… Continue Reading
When developing financial apps you probably get the requirement to detect jailbroken devices. The reason for detection is to either disable some or most of the app’s functionalities due to security concerns that come from a jailbroken system. This article… Continue Reading