Swift - How to remove a decimal from a float if the decimal is equal to 0?

Swift 3/4:

var distanceFloat1: Float = 5.0var distanceFloat2: Float = 5.540var distanceFloat3: Float = 5.03extension Float {    var clean: String {       return self.truncatingRemainder(dividingBy: 1) == 0 ? String(format: "%.0f", self) : String(self)    }}print("Value \(distanceFloat1.clean)") // 5print("Value \(distanceFloat2.clean)") // 5.54print("Value \(distanceFloat3.clean)") // 5.03

Swift 2 (Original answer)

let distanceFloat: Float = (currentUser.distance! as NSString).floatValuedistanceLabel.text = String(format: distanceFloat == floor(distanceFloat) ? “%.0f" : "%.1f", distanceFloat) + "Km"

Or as an extension:

extension Float {    var clean: String {        return self % 1 == 0 ? String(format: "%.0f", self) : String(self)    }}

Use NSNumberFormatter:

let formatter = NumberFormatter()formatter.minimumFractionDigits = 0formatter.maximumFractionDigits = 2// Avoid not getting a zero on numbers lower than 1// Eg: .5, .67, etc...formatter.numberStyle = .decimallet nums = [3.0, 5.1, 7.21, 9.311, 600.0, 0.5677, 0.6988]for num in nums {    print(formatter.string(from: num as NSNumber) ?? "n/a")}

Returns:

3

5.1

7.21

9.31

600

0.57

0.7

extension is the powerful way to do it.

Extension:

Code for Swift 2 (not Swift 3 or newer):

extension Float {    var cleanValue: String {        return self % 1 == 0 ? String(format: "%.0f", self) : String(self)    }}

Usage:

var sampleValue: Float = 3.234print(sampleValue.cleanValue)

3.234

sampleValue = 3.0print(sampleValue.cleanValue)

3

sampleValue = 3print(sampleValue.cleanValue)

3

Sample Playground file is here.