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quangnghiadev / take-notes

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Round Double -> String #2

Open quangnghiadev opened 3 years ago

quangnghiadev commented 3 years ago 
func round(roundingMode: NumberFormatter.RoundingMode = .halfUp, fractionDigits: Int) -> String? {
        let formatter = NumberFormatter()
        formatter.numberStyle = NumberFormatter.Style.decimal
        formatter.roundingMode = roundingMode
        formatter.maximumFractionDigits = fractionDigits
        formatter.minimumFractionDigits = fractionDigits
        return formatter.string(from: NSNumber(value: self))
    }