I am attempting to use an NPM dependency from the ...

# javascript

[Jared Woolston]

I am attempting to use an NPM dependency from the JS portion of an MPP project. Specifically, I am trying to construct an object of a class from the NPM. Specifically, the nvk NPM. I have added a file, nvk.kt which contains:

@file:JsModule("nvk")
@file:JsNonModule
package nvk

external class VulkanWindow

And in the JS source set, I am trying to define an actual for an expected as seen here:

actual class VkWindow {

    val window: VulkanWindow

    actual constructor(width: Int, height: Int, title: String) {
        window = VulkanWindow::class.js.createInstance()
        window.asDynamic()["width"] = width
        window.asDynamic()["height"] = height
        window.asDynamic()["title"] = title
    }
}

Where createInstance() is defined following the discussion at https://discuss.kotlinlang.org/t/is-there-a-way-to-use-the-new-operator-with-arguments-on-a-dynamic-variable-in-kotlin-javascript/6126/4 as:

fun <T : Any> JsClass<T>.createInstance(vararg args: dynamic): T {
    @Suppress("UNUSED_VARIABLE")
    val ctor = this

    @Suppress("UNUSED_VARIABLE")
    val argsArray = (listOf(null) + args).toTypedArray()

    //language=JavaScript 1.6
    return js("new (Function.prototype.bind.apply(ctor, argsArray))").unsafeCast<T>()
}

This all compiles fine but when I try and run it via jsNodeRun I get the following error:

return js("new (Function.prototype.bind.apply(ctor, argsArray))").unsafeCast<T>()

^

Error: Argument 1 must be of type 'Object'

To be honest, I don't have a particular preference on how I instantiate objects from this module, though I would like to be able to eventually do it with arguments. Any guidance would be greatly appreciated.

[turansky]

Do you need browser API in your project?

[Jared Woolston]

not strictly, no. I was hopeful I could eventually get there but i would settle for node

[Dominaezzz]

nvk only works on nodejs anyway.

[Jared Woolston]

so that answers that, node only

[Jared Woolston]

its all i have been trying so far anyway