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  • Book Overview & Buying Mastering Swift 6
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Mastering Swift 6

Mastering Swift 6 - Seventh Edition

By : Jon Hoffman
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Mastering Swift 6

Mastering Swift 6

5 (2)
By: Jon Hoffman

Overview of this book

This seventh edition of Mastering Swift 6 is your ultimate guide to harnessing the full power of Swift. Whether you're aiming to optimize the performance of your applications or looking to explore the exciting new features in Swift 6.2, this book has you covered. The author distills his 28 years of experience in the Engineering and IT fields to help you dive deep into advanced concepts and techniques, such as concurrency, memory management, and Generics, all essential for creating high-performance applications. The chapters take you on a flexible journey, covering Swift 6.2’s newest features alongside advanced programming topics such as reflection, concurrency, and Generics. Packed with best practices, testing strategies, and modern programming techniques, this book equips you with the skills to develop scalable, high-performance applications with confidence. Whether you're looking to stay competitive or simply want to excel in Swift 6, this book provides the tools and knowledge you need to succeed.
Table of Contents (25 chapters)
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Other Books You May Enjoy
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Index

Using Property Observers

There are many common usages for property observers. Here are a few:

  • Validation: We can use the willSet observer to verify that the new values meet certain conditions before they are set.
  • Updating UI: In applications with a user friendly UI we can use the didSet observer to update the user interface based on changes within the backend data.
  • Logging Changes: Property observers can be used to log changes to values for debugging purposes.
  • Cascading Changes: We can modify related properties or state when a property changes.

Let’s look at an example where we use a property observer to trigger external events based on changes to the property. In this example, let’s imagine we are developing a simple inventory management system for a small online store. Our application will need to monitor the stock level of the products and notify a manager or update the system when stock needs to be reordered.

To do this, we could define our Product type like this:

...
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Mastering Swift 6
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