Question

This works:

List(3, 1, 2).sorted apply 1
res1: Int = 2

And this works:

var x = List(3, 1, 2).sorted
x: List[Int] = List(1, 2, 3)
x(1)
res2: Int = 2

but this doesn’t:

List(3, 1, 2).sorted (1)

error: type mismatch;
 found   : Int(1)
 required: Ordering[?]
       List(3, 1, 2).sorted (1)
                             ^

And even parentheses don’t clue the parser in to what I want:

(List(3, 1, 2).sorted)(1)

error: type mismatch;
 found   : Int(1)
 required: Ordering[?]
       (List(3, 1, 2).sorted)(1)

It seems like a natural expression. What am I doing wrong?

Answer 1

This works:

(Listed(3, 1, 2).sorted _)(1),

but I’m not sure whether it is much more convenient to use than:

Listed(3, 1, 2).sorted apply 1.

I’d go for the latter anyways.