I recently discovered this nice syntax for a function that only returns a value based on the input:
fun getItem(value: Int): String = when (getPosition(value)) {
0 -> "Zero"
1 -> "One"
2 -> "Two"
else -> "Other"
}
Is it also possible to use ranges or <> operators?
I've tried doing things like:
>0 -> "Positive"
Which is not accepted, and
0-10 -> "Postively small"
is (naturally) seen as "0 minus 10" I think.
You can do some of these things, but not in the way you describe. For example you can use is, in and == like this:
val x = 10
when (x) {
in 0..10 -> 1
10 -> 2
is Int -> 3
else -> 4
}
but you can't use comparison operators (<, >). The reason for this is explained here. You can use arbitrary expressions, but < and > can't be overloaded so you can't do greaterThan(x).
If you are missing some features from Kotlin you can always open a KEEP so at some point, it might get implemented!
