Adding Thousand Separator to Int in Swift

Question

I am fairly new to Swift and having a great deal of trouble finding a way to add a space as a thousand separator.

What I am hoping to achieve is taking the result

Answer 1

Try this

func addPoints(inputNumber: NSMutableString){
    var count: Int = inputNumber.length
    while count >= 4 {
        count = count - 3
        inputNumber.insert(" ", at: count) // you also can use "," 
    }
    print(inputNumber)
}

The call:

addPoints(inputNumber: "123456")

The result:

123 456 (or 123,456)