How to toggle a boolean value
Swift version: 5.6
Swift’s booleans have a toggle() method that flip them between true and false. That might sound simple, but the end result makes for much more natural Swift code:
var loggedIn = false
loggedIn.toggle()This is particularly useful in more complex data structures: myVar.prop1.prop2.enabled.toggle() avoids the potential typing errors that could be caused using manual negation.
SPONSORED Fernando's book will guide you in fixing bugs in three real, open-source, downloadable apps from the App Store. Learn applied programming fundamentals by refactoring real code from published apps. Hacking with Swift readers get a $10 discount!
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 8.0
Similar solutions…
- How to create a toggle switch
- Customizing Toggle with ToggleStyle
- How to hide the label of a Picker, Stepper, Toggle, and more using labelsHidden()
- What is a monad?
- All SwiftUI property wrappers explained and compared
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
