Swift

Swift abs function to get an absolute value

philsellars

Abs can be used to get the absolute value of a calculation that may have a positive or negative value. As an example without Abs we could go for… 

var difference: Int
        
        if currentValue > targetValue {
            difference = currentValue - targetValue
        } else if targetValue > currentValue {
            difference = targetValue - currentValue
        } else {
            difference = 0
        }

or…

var difference: Int = targetValue - currentValue
        
        if difference < 0 {
            difference = difference * -1
        }

However, using the Abs function we can simply type…

let difference = abs(targetValue - currentValue)

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Published by philsellars

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