For content not specific to either Swift or Objective-C
Swift 5.5 introduced async/await and actors, which together form Swift’s modern structured-concurrency model. Actors help you write safer concurrent code by protecting mutable state (data that can change) from being accessed unsafely by multiple tasks at the same time. This article explains what actors are, what problem they solve, and how to use them –... » read more
What is Polymorphism? … To begin to understand this concept, it’s helpful to know that the word polymorphism comes from the Greek meaning many shapes (or forms). In the context of Object-Oriented Programming, this means the provision of a single interface to entities of different types. The interface provided by the objects is the same, but what’s going... » read more
N.B. This content may be out of date as this article was originally written in 2021. These days, a very popular stack for web applications is the MEAN stack. It’s a stack that uses JavaScript, and its popularity is partly because JavaScript has come a long way since its early days—particularly with the optional type-safety... » read more
Background In mathematics and computer science, the Entscheidungsproblem (“decision problem”) is a challenge posed by David Hilbert and Wilhelm Ackermann in 1928. David Hilbert was a well-known German mathematician, and together with his collaborator Wilhelm Ackermann they were influential figures in the mathematical community during the early 20th century. In their work titled “Grundzüge der... » read more
Apple just announced some new things – here’s the low down on what Apple revealed at their event. The first things covered at the event were some things we already knew about, but which, at the Event apple elaborated upon. Apple Arcade Highlighted first was Apple’s new Exclusive Games Platform for their devices – offering... » read more
What is a Relational Database A Database is a collection of related data, and a Relational Database is a database that has “relations”. Where, formally, a relation is a subset of a cartesian product of sets. Informally, a relation is a “table” with rows and columns. Therefore, a “Relational Database” is a database that arranges... » read more
In this article, I’ll aim to briefly outline some of the most interesting talks from WWDC 2019 along with a short summary of what they cover. This is a work in progress and I intend to continue to update and edit it to be more useful over the next week or two. If a talk... » read more
Unlocking the Power of Unit Testing in Software Development Unit Testing is a method dedicated to validating each fragment, or “unit”, of software. This approach isn’t just about verifying if a class or a method operates correctly; it dives deep, scrutinising sets of modules, associated control data, usage procedures, and even operating procedures. But what... » read more
A Graph is an important data structure in computer science; it is defined as a collection of nodes with “edges” between some of the nodes. When we talk about Graphs that category includes Trees, however not all Graphs are Trees. “Graphs arise in various real-world situations as there are road networks, computer networks and, most recently,... » read more
What is Certificate Pinning? Certificate Pinning refers to a technique of associating a host with an expected X.509 certificate, which is a digital certificate using the accepted international X.509 Public Key Infrastructure standard. By creating such an association, a browser or app is able to detect a change in the certificate used by a host,... » read more