JSExportNamed

Exports the given method to JavaScript with named parameters.

It can then be called like this:

obj.foo({
  param1: value1
  param2: value2
  param7: value3
});

Note that named exports don't support overloading. Therefore the following will fail:

class A {
@JSExportNamed
def a(foo: Int) = foo + 1
@JSExportNamed
def a(bar: String) = "Hello " + bar
}

As of Scala.js 0.6.11, @JSExportNamed is deprecated without direct replacement (see https://github.com/scala-js/scala-js/issues/2442). You should take a single parameter of a JS type and decompose it yourself. For example, instead of

class A {
@JSExportNamed
def foo(a: Int, b: String, c: Boolean = false): Unit = {
  // do something with a, b, c
}
}

you should write:

trait FooOptions extends js.Object {
  val a: Int
  val b: String
  val c: js.UndefOr[Boolean]
}

class A {
  @JSExport
  def foo(options: FooOptions): Unit = {
    val a = options.a
    val b = options.b
    val c = options.c.getOrElse(false)
    // do something with a, b, c
  }
}