Associated types let protocols model flexible value containers.
Kodebits Day 13: Associated Types
Associated types let protocols model flexible value containers.
iOS & Swift
New
macOS Apprentice
Apr 24 2026 · Book
macOS Apprentice is a series of multi-chapter tutorials where you’ll learn about developing nativ...
more
macOS Apprentice
macOS Apprentice is a series of multi-chapter tutorials where you’ll learn about developing native
macOS apps in Swift, using both SwiftUI — Apple’s newest user interface technology — and AppKit — the
venerable UI framework. Along the way, you’ll learn several ways to execute Swift code and you’ll build
two fully featured apps from scratch.
If you’re new to macOS and Swift, or to programming in general, learning how to write an app can seem
incredibly overwhelming.
That’s why you need a guide that:
Shows you how to write an app step-by-step.
Uses tons of illustrations and screenshots to make everything clear.
Guides you in a fun and easy-going manner.
You’ll start at the very beginning. The first section assumes you have little to no knowledge of programming in Swift.
It walks you through installing Xcode and then teaches you the basics of the Swift programming language. Along the way,
you’ll explore several different ways to run Swift code, taking advantage of the fact that you’re developing natively
on macOS.
macOS Apprentice doesn’t cover every single feature of macOS; it focuses on the absolutely essential ones.
Instead of just covering a list of features, macOS Apprentice does something much more important: It explains how all the
building blocks fit together and what is involved in building real apps. You’re not going to create quick example programs that
demonstrate how to accomplish a single feature. Instead, you’ll develop complete, fully-formed apps, while exploring many of
the complexities and joys of programming macOS.
This book, macOS Apprentice, is designed to teach new developers how to build macOS apps while assuming they have little to
no experience with Swift or any other part of the Apple development ecosystem.
Bite-sized lessons you can finish in a sitting—from quick tips to full content modules.
iOS & Swift
New
RealityKit & Reality Composer Pro
Feb 4 2026 · Multimodal Module (1 hr, 6 mins)
Learn how to create augmented reality experiences using Reality Composer Pro with RealityKit and USDz. Cre...
more
RealityKit & Reality Composer Pro
Learn how to create augmented reality experiences using Reality Composer Pro with RealityKit and USDz. Create 3D scenes employing models, animations, and interactions using RealityKit. Also learn how to use both RealityKit and Reality Composer Pro to create AR experiences to be added to visionOS apps. New version — checked against latest OS.
iOS & Swift
New
visionOS: An Introduction
Dec 16 2025 · Multimodal Module (1 hr, 11 mins)
Now updated for visionOS 26! The Vision Pro and visionOS present a new paradigm in computing. This is the
...
more
visionOS: An Introduction
Now updated for visionOS 26! The Vision Pro and visionOS present a new paradigm in computing. This is the
beginning of spatial computing. Users will be able to view apps floating in
front of their eyes and they will be able to interact with them with taps,
gestures and their hands. This learning path will survey the various types
of apps that you can build for spatial computing. We’ll explore building
windowed apps; running existing iOS and iPad apps in windows, creating
apps with 3D elements in 3D volumes, as well as fully immersive apps,
where the user is inside a completely virtual environment.
iOS & Swift
SwiftData in iOS 26
Dec 10 2025 · Multimodal Module (55 mins)
In this module, you’ll learn about the new features in Swift Data that were introduced at WWDC 2025. The ...
more
SwiftData in iOS 26
In this module, you’ll learn about the new features in Swift Data that were introduced at WWDC 2025. The new model inheritance capabilities, and how they impact queries and model migration are covered.
Completion time may vary based on individual pacing.
Craft groundbreaking 3D experiences for the future of visionOS and Apple's Vision Pro.
Books & Long-Form
Go beyond tutorials. Our books give you the complete picture—hundreds of pages of structured learning you can read at your own pace.
iOS & Swift
New
macOS Apprentice
Apr 24 2026 · Book
macOS Apprentice is a series of multi-chapter tutorials where you’ll learn about developing nativ...
more
macOS Apprentice
macOS Apprentice is a series of multi-chapter tutorials where you’ll learn about developing native
macOS apps in Swift, using both SwiftUI — Apple’s newest user interface technology — and AppKit — the
venerable UI framework. Along the way, you’ll learn several ways to execute Swift code and you’ll build
two fully featured apps from scratch.
If you’re new to macOS and Swift, or to programming in general, learning how to write an app can seem
incredibly overwhelming.
That’s why you need a guide that:
Shows you how to write an app step-by-step.
Uses tons of illustrations and screenshots to make everything clear.
Guides you in a fun and easy-going manner.
You’ll start at the very beginning. The first section assumes you have little to no knowledge of programming in Swift.
It walks you through installing Xcode and then teaches you the basics of the Swift programming language. Along the way,
you’ll explore several different ways to run Swift code, taking advantage of the fact that you’re developing natively
on macOS.
macOS Apprentice doesn’t cover every single feature of macOS; it focuses on the absolutely essential ones.
Instead of just covering a list of features, macOS Apprentice does something much more important: It explains how all the
building blocks fit together and what is involved in building real apps. You’re not going to create quick example programs that
demonstrate how to accomplish a single feature. Instead, you’ll develop complete, fully-formed apps, while exploring many of
the complexities and joys of programming macOS.
This book, macOS Apprentice, is designed to teach new developers how to build macOS apps while assuming they have little to
no experience with Swift or any other part of the Apple development ecosystem.
iOS & Swift
New
Swift Internals
Mar 23 2026 · Book
This book is designed for Swift developers who want to go beyond writing working code and understand how t...
more
Swift Internals
This book is designed for Swift developers who want to go beyond writing working code and understand how the language truly works under the hood.
It explains the mechanics of Swift’s type system, compiler behavior, memory model, and performance characteristics. Readers will also learn advanced topics like unsafe memory operations, metaprogramming, modular architecture, and linking strategies.
The goal is to help developers reason about Swift at the language, compiler, and system levels. It is ideal for Swift engineers who want to write faster, safer, and more scalable apps.
Multiple Domains
New
Advanced Git
Nov 28 2025 · Book
Master Git!
Chances are if you’re involved with software development you’ve heard of and have use...
more
Advanced Git
Master Git!
Chances are if you’re involved with software development you’ve heard of and have used Git at some point in your life. Version control systems are critical for any successful collaborative software project. Git is both simple to start using and accommodating for the most complex tasks with version control. Even seasoned Git users hit roadblocks on how to handle common situations.
Advanced Git is here to help! This book is the easiest and fastest way to get hands-on experience with using Git for version control of your projects.
Take a deep dive into:
How Git actually works: After using Git for a while it’s good to discover the whys behind all of the things.
Rebasing: Rebasing and squashing doesn’t have to be scary; it’s quite a useful and advanced way of merging code to support your collaborative workflow.
Undoing what you’ve done: Most frustration with Git comes from not being able to undo something that you’ve screwed up. But Git has lots of ways you can go back and recover from a weird merge or commit state.
Workflows in Git: Working with Git requires some rules to make sure things go smoothly across development teams. Learn the most common workflows and how to decide which one to use.
And more!
One thing you can count on: after reading this book, you’ll be well-prepared to use Git in your own software development workflow!
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