You’ve probably heard of graphs in computer science, and you might even be dreading them a bit. After all, graphing algorithms are one of the favourite questions on technical interviews. In this article we’ll implement the edge-weighted digraph in swift. This is an essential structure that we’ll use later on… Read more »
Unified logging system in a relatively new logging mechanism that was introduced with iOS 10. It’s blazingly fast and gives you a fine-grained control over your logs. In this article we’ll explore the features of unified logging system and see how you can use it to make your debugging time… Read more »
Composite pattern is a nice little pattern that will help you manage complex hierarchies. It’s commonly used to represent menus and directories/files. In this article we’ll go over the theory and learn on an example how to implement this pattern. We’ll use a slightly more colourful example, just to keep… Read more »
Iterator pattern is a perfect choice for you when you need to traverse a collection of objects. It’s fairly simple and it’s so widely used that most collection types implement this pattern in the swift standard library. In this article you’ll learn how to implement the iterator pattern. This will… Read more »
Command pattern is a very simple pattern that allows you to decouple a class that invokes a command from a class that knows how to perform it. This gives you incredible flexibility. In this article we’ll go over the theory of what command pattern is after which we’ll follow-up with… Read more »
Chain of responsibility is a well-known pattern that you probably ran into without realising it. In this article we’ll continue our journey on design patterns in swift and learn more about chain of responsibility pattern. We’ll cover some theory at first and then we’ll implement a cascading cache with an… Read more »
If your objects can have multiple states, then you should consider implementing a state pattern. In this article we’ll cover some theory on state pattern, and then we’ll go over an example on how to implement it. Hopefully, by the end of the article, you’ll be familiar with the state… Read more »
You might be wondering what are throwable optionals. It’s simply an optional that will throw when force unwrapping. Throwable optionals don’t exist in the swift standard library. In this blog article we’ll create them and we’ll create a custom operator for them as well. This article has been inspired by… Read more »
It might seem strange at first to write an article on functions in swift. But functions in swift are a bit special and have some pretty cool characteristics. Hopefully by the end of this article you’ll understand them better. Three Things to Remember There are only three things that you… Read more »
Continuing on our journey with design patterns, this week we’ll visit the observer pattern. This is a really simple pattern to implement. We’ll quickly go through some theory and get down to business. Hopefully, by the end of the article, you’ll be using the pattern in your projects. The Observer… Read more »
