Proceed with caution — Difficulty: Beginner | Easy | **Normal** | Challenging You probably shouldn’t be doing this. You probably shouldn’t be doing this. Core Data can store data, but storing large images like this? Probably you want to use file. But I can see that you **really** want to store UIImage. …

And what we can learn — Georg Cantor played a pivotal role in the creation of set theory, and his theory of transfinite numbers has been considered to be shocking. Called by peers as a scientific charlatan, renegade and corrupter of youth it is said that his leading mathematical work led him to an unexpected end. …

The concept — In practice Moore’s Law, that single-core processor speeds would double every 18 months is dead. The smaller chips got, the more difficult it became to dissipate that heat and avoid hot-spots on chips. The solution? We’ve got to a point where you can have thousands of cores on a GPU. …

Knowing when to use it is important! — User defaults are an important way to store small pieces of data in your application. The implementation of UserDefaults Remember that UserDefaults is called defaults since they usually refer to the App’s default state at startup or the default behaviour of the Application. Wonderfully UserDefaults is thread safe! iOS stores NSUserDefaults into a plist…

Not the same, Dave. — Scrum and Agile are often confused and mixed up by (otherwise capable) developers. This can’t go on! We need to think about ways that we can develop software to deliver that working product. Agile The basics: an iterative approach Agile software development is about creating an incremental, iterative approach to software development where the goal of…

A quite basic guide — A demonstration of dependency inversion using Swift Difficulty: Beginner | Easy | Normal | Challenging This article has been developed using Xcode 12.0, and Swift 5.3 Terminology: Dependency Injection: A technique that allows objects to receive other objects on which it depends Dependency Inversion: A principle that allows the decoupling of…

Can you run an effective Sprint Retrospective from home? — Much of the Agile framework is outward looking and helps participants in the software development process to get stuff done. Then towards the end of a cycle, the Sprint Retrospective is an opportunity for the Scrum team to think about itself and how the (admittedly) complex process of software development…

And how to prevent them — When a programmer creates software they typically wish that software to be predictable. Many pieces of software are deterministic so given a set of inputs the same output is always given. Although non-deterministic algorithms have their uses (for example to approximate answers) this focuses on deterministic functions. Determinism and Data Races In the following…

Fun! — Assembly programming is often seen as rather a black box for Front-End developers. This article is about using Swift to see something about assembly programming. This is going to be interesting! Difficulty: Beginner | Easy | Normal | Challenging This article has been developed using Xcode 12.0, and Swift 5.3 Prerequisites: …