How to add spaces to sum using Swift?

Question

Swift

Hello. I have a String containing a different amount (1000, 550, 100500, 2000000.50 etc), how can I format this string with Swift 3 to include spaces? 550 => 550, 1000 => 1,000, 100500 => 100,500, 2000000.50 => 2,000,000.50, etc.
This is implemented in Sberbank online and similar applications.
For a long time I searched for an answer on the Internet but could not find anything. Thank you.

Answer 1

Good afternoon, what you need is NumberFormatter. It has view settings groupingSeparator, numberStyle, which you can use to get what you need:
https://stackoverflow.com/questions/29999024/addin...