NSNumber(booleanLiteral: true) alternate syntax
Generated on 10/3/2024
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In Swift, NSNumber(booleanLiteral: true)
is a way to create an NSNumber
object that represents a boolean value. However, in Swift, you can use a more straightforward syntax to represent boolean values directly using Swift's native Bool
type. For example, you can simply use true
or false
as boolean literals.
If you are working with Swift and need to use NSNumber
for compatibility with Objective-C APIs, you can create an NSNumber
from a Bool
like this:
let number = NSNumber(value: true)
This approach is more idiomatic in Swift when you need to bridge between Swift and Objective-C.
For more information on Swift's features and design, you might find the session A Swift Tour: Explore Swift’s features and design helpful, which covers various aspects of Swift, including value types and mutability.
A Swift Tour: Explore Swift’s features and design
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Catch up on accessibility in SwiftUI
SwiftUI makes it easy to build amazing experiences that are accessible to everyone. We’ll discover how assistive technologies understand and navigate your app through the rich accessibility elements provided by SwiftUI. We’ll also discuss how you can further customize these experiences by providing more information about your app’s content and interactions by using accessibility modifiers.
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Embedded Swift brings the safety and expressivity of Swift to constrained environments. Explore how Embedded Swift runs on a variety of microcontrollers through a demonstration using an off-the-shelf Matter device. Learn how the Embedded Swift subset packs the benefits of Swift into a tiny footprint with no runtime, and discover plenty of resources to start your own Embedded Swift adventure.