Learn more about Swift fundamentals

You can reverse an Array, and any other Collection in Swift using the reverse method. For example var input = [1, 2, 3] print(input) // [1, 2, 3] input.reverse() print(input) // [3, 2, 1] The code above takes an array (input) and reverses it in-place using the reverse() method. This only works if your array […]

Swift allows us to use a static prefix on methods and properties to associate them with the type that they’re declared on rather than the instance. We can also use static properties to create singletons of our objects which, as you have probably heard before is a huge anti-pattern. So when should we use properties […]

We all want to write good, beautiful and stable code. This includes preventing memory leaks, which we can, using [weak self] when writing a closure that needs access to self. But what’s the real reason for needing this weak capture? And do we need it all the time? In this week’s Quick Tip, I want […]

map, flatMap, compactMap… how to decide? In this post you’ll learn about differences and similarities that can make it tricky to decide which one fits your use case best.

For loops are an incredibly useful feature in the Swift language. In this post, you’ll learn everything there is to know about for loops. This includes more obscure techniques like naming your loops.

Many applications work with data, often they are built to retrieve data and display this data to the user in a table view, collection view, list (if you’re using SwiftUI) or a different kind of component. It’s not uncommon for this data to change and when it does you might be interested in figuring out […]

Whenever I’m programming, I have a goal in mind, generally a problem to solve. I want my solutions to be simple, yet elegant and reliable. Thankfully, Swift is a great language for this. The language is safe, its syntax is beautiful with great readability. The way Swift handles nullability with Optional contributes greatly to its […]

There are times when you need to extract a subset of an array. For example, you might need to find all elements in an array at an odd index. Or maybe you need all items at an even index. In other words, you’re looking for every "other" element in an array. This might seem like […]