Precision String Format Specifier In Swift

Question

Below is how I would have previously truncated a float to two decimal places

NSLog(@" %.02f %.02f %.02f", r, g, b); 

I checked the docs and the eBook but haven't been able to figure it out. Thanks!

Answer 1

The following code:

import Foundation // required for String(format: _, _)  print(String(format: "a float number: %.2f", 1.0321)) 

will output:

a float number: 1.03