Hi there everyone,

I can create the basic countdown in playground as follows:

import UIKit

var counter = 16

while counter > 1 { counter -= 1 print (counter) if counter == 1 { print("Blastoff!") } }

but this prints every integer from 15 to 1. despite my best efforts I'm unable to figure out how to have the countdown behave like a clock, such that you see each integer only once as the countdown moves from 15 to 1

thanks in advance for any suggestions

Paul