How to export Kotlin functions to Javascript with correct name

Question

I'm trying to export Kotlin functions to Javascript. The problem is, functions which require arguments are renamed after Kotlin2JS operation, here's an example:

Kotlin source:

fun withParam(args: String) {
    println("JavaScript generated through Kotlin")
}

fun withoutParams() {
    println("Without params")
}

After Kotlin2JS, trying to require in Node REPL:

> const kotlinBundle = require('./build/index.js');
undefined
> kotlinBundle
{ 'withParam_61zpoe$': [Function: withParam],
  withoutParams: [Function: withoutParams] }
>

As you can see, function with argument got exported with _61zpoe$ suffix. Is it possible to get rid of that part?

I'm using kotlin2js plugin and kotlin-stdlib-js:1.1.1 library, my kotlinOptions are:

compileKotlin2Js.kotlinOptions {
  moduleKind = "commonjs"
  outputFile = "build/index.js"
}

Thanks

Maxim Shafirov · Accepted Answer · 2017-09-13 07:11:53Z

2

You can use @JsName annotation to provide exact name for the function (or other symbol) in compiled javascript. I.e.

@JsName("withParam")    
fun withParam(args: String) {
      println("JavaScript generated through Kotlin")
}

answered Sep 13, 2017 at 7:11

Maxim Shafirov

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