Understanding Swift Initializers

As part of the Swift Deeper Understanding series I want to take a closer look at Initializers
We will take a look at what an initializer is for structs and classes and we will look at creating multiple initializers for a struct or class and find out what a Convenience initializer is.

We will finish the video by looking at how we can create a custom initializer for a SwiftUI HStack

If you want to support my work, you can buy me a coffee :)

Table of Contents:
0:00 Introduction
1:25 Introduction to Initializers
8:27 Multiple Initializers
14:35 Convenience Initializers
18:27 Custom HStack Initializer

Starter Project Files:
(If you are having problems downloading zip files, use Safari. Chrome restricts zip files by default)

Completed Project:

References mentioned in video:
Initializers Part 1

Initializers Part 2

Other References:
Stewart Lynch's YouTube Channel:
Stewart Lynch on Mastodon:
Stewart Lynch on Twitter:
Stewart Lynch on LinkedIn

[stephaniewagstaff]

I’m only through first 5 minutes and your explanation exploded the brick wall in front of me getting this! Your are truly the best instructor out there!

[robertdavis]

Great job again! I didn't expect to learn anything from this one, but I was wrong. Thanks

[patgoo]

Great examples, especially the last example, changing the default implementation initializer. This helped me understand the SwiftUI documentation.

[nigelgee]

Just a quick note that if you create an extension on a struct and add the other init() then you do not lose the member wise init

[Mahadev-xu]

Special thanks for SwiftUI example ... 👏 if you can create video about how better understand documentation ... it´s will be amazing!

[DavidKoontz]

Great content. The explanation of adding the init doc comment to make the quick help display the help text for API explanation should be required watching for API Producers!

[mhfs]

It finally clicked with me. Thank you Stewart.

[dibjr]

In Xcode 14.3 I get a bunch of 'unknown context at $....' in the statement results frame for the let statements, which I don't see in your video. They appear to not have a bad effect.