Does Kotlin have a standard way to format a number as an English ordinal?

Question

In Swift, I can do something like this:

let ordinalFormatter = NumberFormatter()
ordinalFormatter.numberStyle = .ordinal

print(ordinalFormatter.string(from: NSNumber(value: 3))) // 3rd

but I don't see any way to do this so easily in Kotlin. Is there such a way, or will I have to use 3rd-party libraries or write my own?

Answer 1

Well, it is usually hard to prove that something doesn't exist. But I have never come across any function in kotlin-stdlib that would do this or could be immediately adapted for this. Moreover, kotlin-stdlib doesn't seem to contain anything locale-specific (which number ordinals certainly are).

I guess you should actually resort to some third-party software or implement your own solution, which might be something as simple as this:

fun ordinalOf(i: Int) {
    val iAbs = i.absoluteValue // if you want negative ordinals, or just use i
    return "$i" + if (iAbs % 100 in 11..13) "th" else when (iAbs % 10) {
        1 -> "st"
        2 -> "nd"
        3 -> "rd"
        else -> "th"
    }
}

Also, solutions in Java: (here)