Swift 2.0 Format 1000's into a friendly K's

Question

I\'m trying to write a function to present thousands and millions into K\'s and M\'s For instance:

1000 = 1k
1100 = 1.1k
15000 = 15k
115000 = 115k
1000000 =          


        

Answer 1

For swift 4.0. its work completely fine and answer based on @user3483203

Function for convert Double value to String

func formatPoints(num: Double) ->String{
    var thousandNum = num/1000
    var millionNum = num/1000000
    if num >= 1000 && num < 1000000{
        if(floor(thousandNum) == thousandNum){
            return("\(Int(thousandNum))k")
        }
        return("\(thousandNum.roundToPlaces(places: 1))k")
    }
    if num > 1000000{
        if(floor(millionNum) == millionNum){
            return("\(Int(thousandNum))k")
        }
        return ("\(millionNum.roundToPlaces(places: 1))M")
    }
    else{
        if(floor(num) == num){
            return ("\(Int(num))")
        }
        return ("\(num)")
    }

}

Make one Double extension

extension Double {
    /// Rounds the double to decimal places value
    mutating func roundToPlaces(places:Int) -> Double {
        let divisor = pow(10.0, Double(places))
        return Darwin.round(self * divisor) / divisor
    }
}

Usage of above function

UILABEL.text = formatPoints(num: Double(310940)!)

Output :