How to make a number positive using abs()
Swift version: 5.1
The abs() function returns the absolute value of a number, which is a way of describing how far away from zero it is without thinking about whether it’s positive or negative. It’s most commonly used if you have a number that you need to be positive, because whether you pass 30 or -30 to abs() you get back 30.
In code it’s just this:
let number = -15
let absolute = abs(number)That will set absolute to 15.
LEARN SWIFTUI FOR FREE I have a massive, free SwiftUI video collection on YouTube teaching you how to build complete apps with SwiftUI – check it out!
Available from iOS 8.0
Similar solutions…
- How to limit the number of characters in a UITextField or UITextView
- How to generate a random number with GKRandomSource
- How to add a number over your app icon using applicationIconBadgeNumber
- How to generate a random number
- How to use UIStepper to let users change number values
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
