New in Swift 4.2, the compiler can generate a collection of an enum’s cases, relieving you from the error-prone task of maintaining such a list yourself.

When writing tests for any application, it's always important to consider what the debugging experience will be like when they eventually start failing. This week, let's take a look at a few different scenarios, and how we - with just a few subtle tweaks…

The @inline attribute is one of those obscure things in Swift - it's nowhere to be found in Apple's docs, doesn't help you write cleaner code and has no purpose but to help the compiler make optimization decisions, but it's related to a pretty important aspect…

This article will help you understand the iterator pattern it will enable you to build your custom iterators and understand the built-in iterators.

Exploring how resumable downloads - one of my favorite new features in Nuke 7 - are implemented using HTTP range requests

There are a lot of tips and tricks that allow iOS developers to know how to make performance optimizations to get animations in…

In this Create ML tutorial, you’ll learn how to transfer your learning to Turi Create, and gain familiarity with machine learning toolsets and terminology. No math needed!

Editor’s note: Earlier, we started a new series of tutorials to answer some of your common questions of iOS app development. For beginners, one question popped up is when to use viewDidLayoutSubviews. In this tutorial, Kelvin will look into some of the view…

New diagnostic directives in Swift 4.2. What are they and how are they implemented?

Recently I was having a hard time tracking down a bug that was the cause of performance problems in the app I was working on. It took me a…

Navigation is one of the most important aspect of any app. Let's learn how to get the most from UITabBar…

Literals are the essential blocks of the code and implementing shorthands for them makes your Swift code more clean and direct. Let's explore `ExprissibleByLiteral` protocols which allow structs, classes and enums to be initialized using a literal.

This week, let's explore various versions of the commonly used Result type (including the implementation included in the Swift 5 version of the standard library), and some of the cool things it lets us do when combined with some of Swift's language features.

Sometimes you can find yourself in a situation where your app cannot perform well. So here are some instruments you can use and best…

https://medium.com/@eLegion_/gotta-go-fast-building-for-speed-in-ios-efc78a626a9c

An enumeration — short: an enum — is a collection of distinct values that somehow belong together, for example a list of airports:

Keeping view controllers clean and understandable