Swift version: 5.10
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.
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Available from iOS 8.0
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
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