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

Code:

//5000000
let formatter = NumberFormatter()
formatter.groupingSeparator = " "
formatter.locale = Locale(identifier: "en_US")
formatter.numberStyle = .decimal. 

Output:

5 000 000