Recent articles

In Swift, we sometimes want to assign a property based on whether a certain condition is true or false, or maybe based on the value of an enum. To do this, we can either make a variable with a default value that we change after checking our condition or we define a let without a […]

Swift comes with types of objects that we can use to write type declarations. They all have their own distinct features, upsides, and downsides. In this post I’d like to zoom in on the enum type so you can get a sense of what enums are, and when they can be useful. In this post […]

Apple has recently introduced a new requirement that makes it so that apps that use certain APIs for Apple’s mobile platforms (iOS, iPadOS, tvOS, watchOS) must declare their intended use of certain APIs. This requirement has gone in effect on May 1st which means that any app updates or submissions that don’t meet Apple’s new […]

Sometimes, we write code that needs set some state or perform some work at the start of a function and at the end of that same function we might have to reset that state, or perform some cleanup regardless of why we’re exiting that function. For example, you might have a function that creates a […]

In Swift, we can use computed properties to derive a value from other values defined on the same object. Being able to do this is super convenient because it means that we don’t have to manually make sure that we update derived properties every time one of the “source” values changed. We’ll just recompute the […]

In Swift, we can use the case keyword in multiple places. Most commonly, a case is used in switched but since you’re here, you might have seen a case in combination with an if statement. In this post, we’ll explore different places where we can use the case keyword to perform something called pattern matching […]

As teams grow and companies mature you’ll often find that it gets harder and harder to manage processes that seemed to be so simple before. When I worked in startups one of my favorite things was how quick the feedback cycle was on pretty much everything I did. When someone designed a new feature we […]

Sometimes when you’re programming you have some properties that are pretty expensive to compute so you want to make sure that you don’t perform any work that you don’t absolutely must perform. For example, you might have the following two criteria for your property: The property should be computed once The property should be computed […]

For and forEach are both ways to loop over a collection of items in Swift. They have some subtle differences that are worth being aware of so you can make an informed decisions when choosing between the two.

Swift 5.5 introduced loads of new concurrency related features. One of these features is the MainActor annotation that we can apply to classes, functions, and properties. In this post you’ll learn several techniques that you can use to dispatch your code to the main thread from within Swift Concurrency’s tasks or by applying the main […]