Problem formatting 4-digit integers with thousands separator

Question

print(String(format: "%d", locale: Locale.current, 33600))

//prints 33.600

print(String(format: "%d", locale: Locale.current, 3360))

//prints 3360 without thousands separator

Same issue using NumberFormatter.

Answer 1

Here in the US, where the thousands separator is a comma, the following code:

print(String(format: "%d", locale: Locale.current, 33600))
print(String(format: "%d", locale: Locale.current, 3360))

let formatter = NumberFormatter()
formatter.numberStyle = .decimal

print(formatter.string(from: 33600)!)
print(formatter.string(from: 3360)!)

Outputs:

33,600
3,360
33,600
3,360

So it works as expected.