What's New in Swift 5.6, @Published Explained, Custom Combine Operators, Async CoreData Testing

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Hello, you're reading Infinum iOS Cocoa Treats, bringing you the latest iOS related news straight to your inbox every week.

What’s new in Swift 5.6?

Type placeholders, unavailable checks, Codable improvements, and more.

Articles

@Published risks and usages explained

Learn how to use the @Published property wrapper and prevent yourself from running into common bugs when using it in the wrong way.

Building a Custom Combine Operator for Exponential Backoff

Learn how to build custom retry operator with exponential backoff.

Async Core Data Testing

Example on how to test an asynchronous Core Data operations.

'Functional core, imperative shell' in Swift

Key objective is to separate functional code and imperative code, and minimize the imperative code.

Create Dividers in UIMenu using UIKit

Add a divider in UIKit Context Menus.

How to reset push notification permission on macOS

Resetting push notification permission on macOS isn't as straightforward as it is on an iOS. Check out how to do it.

Apple News & Updates

New Apple Technotes

• TN3105: Customizing the UIKit status bar style
• TN3106: Customizing the appearance of UINavigationBar

• TN3118: Debugging your app’s launch screen

Other

Dynamic Linking Is Bad For Apps And Static Linking Is Also Bad For Apps

A fundamental trade-off of launch time vs. disk space, but also there's still room to improve.

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TaskGroup, SwiftUI @StateObject vs @ObservedObject, TabularData Framework, Xcode Configuration Files

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Thursday, January 27, 2022

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