Hello all, I'm originally a JS developer and I spent the last year learning Kotlin. I wrote this library for creating frontend apps https://github.com/talon/nimble. To me, it's like Elm but if Kotlin did it. I'd love to hear your feedback if you have any!

hi, is kotlin ever going to compile to wasm instead of js?

and second, mixing html and kotlin code like that makes it pretty much unusable for anything BUT kotlinjs

is this a good place to talk about the kotlin frontend plugin ? I am having some issues when running tests (my tests only run again if I change the karma reports before each run).

Besides giving up, what alternatives there are when I want to use a JS library (particularly, Reactstrap for React-ready Bootstrap components) on Kotlin/JS, but ts2kt failed to generate Kotlin definitions for that library? (

Hi, what could be reason of not creating proper method

MessageApi.prototype.onMessage_ep0k5p$ = function (listener) {
    this.socketApi_0.addListener_lgim5c$(KWebSocket$Companion_getInstance().EVENT_MESSAGE, MessageApi$onMessage$lambda(listener));
  };

This was not created:

Object.defineProperty(MessageApi.prototype, 'onMessage', {
    get: function () {
      return this.onMessage_ep0k5p;
    }
  });

This is the class:

class MessageApi(private val socketApi: ISocketApi, override val user: String = WebAppUser) : IMessageApi {

    override fun onMessage(listener: MessageListener) {
        socketApi.addListener(KWebSocket.EVENT_MESSAGE) {
            it.data?.apply {
                listener(this)
            } ?: println("Message text was null: $it")
        }
    }

    override fun send(text: String) {
        socketApi.webSocket.send(SocketData(SocketDataType.Default, user, KWebSocket.EVENT_MESSAGE, text))
    }
}

are you planning to add a minification feature for output .js files for front end projects in kotlin?

Is there any sample/medium/blog teaching how to publish/consume a js library with gradle?

what do you guys use to bundle and minify the .js files generate by kotlin?

So... I was trying to publish my kmmp library for js into npm... and it seems that there is already a library with the same name as mine... so I thought I could create a scoped pacakge.... does kotlin frontend plugin can help me with it or publishing the package in general?

unfortunately webpack messes up the source maps and kotlin code doesn't appear anymore int he dev tools within chrome

turns out i can do it adding an overrider inside webpack.config.d dir

Are there any libraries that provide a Map or Map-like interface for js objects?

any plan to target ES6 with kotlinjs ?

dce works now, it trims everything to aroung 300 Kb, which is ok, the problem is webpack resolve precedence, it was not picking the dced files

Hi guys, I have a strange error raised by KotlinDce:

error: duplicate target file will be created for '/Users/gaetan/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-js/1.2.61/6e6ada4e826d8c66053f9383a6778b2324853f2/kotlin-stdlib-js-1.2.61.jar!kotlin.js' and '/Users/gaetan/dev/data2viz/time/d2v-time-js/build/libs/d2v-time-js-0.6.0.jar!lib/kotlin.js

Has anyone already seen this message and understood the problem?

is kotlin.incremental.js=true still necessary for incremental compilation or is it enabled by default?

I'm new to the whole Kotlin JS transpiling and trying to look for some good samples in combination with Spring boot. For now I have found some very simple proof of concepts, but they don't satisfy my hunger. 😉 Spring + Thymeleaf + Kotlin Js (simple Jquery DOM manipulation) ?

if you compile all your tests to a directory and then run karma or node by itself over them?

I'm new with Kotlin Js and I'm facing a problem here (probably it's a newbie mistake that I'm not seeing) I'm trying to import kotlin html dsl library with gradle but when I try to build, this error appears

Module not found: Error: Can't resolve 'kotlinx-html-js' in '/home/bloder/KotlinJsProjects/bloder-polymer-playground/polymer-playground/build/js'

I've already tried to import kotlin-html-js in node dependencies but it's still occurring, I'm using kotlin front end plugin, and I'm importing the library like this

dependencies {
    implementation "org.jetbrains.kotlinx:kotlinx-html-js:0.6.9"
}

After running the Gradle test task there is a error with the kotlin module not being found (using Jest for Kotlin JS testing):

> Task :js:runJest FAILED
FAIL build/test/js_test.js
  ● Test suite failed to run

    Cannot find module 'kotlin' from 'js_test.js'

      3 |     define(['exports', 'kotlin', 'kotlin-test'], factory);
      4 |   else if (typeof exports === 'object')
    > 5 |     factory(module.exports, require('kotlin'), require('kotlin-test'));
        |                             ^
      6 |   else {
      7 |     if (typeof kotlin === 'undefined') {
      8 |       throw new Error("Error loading module 'js_test'. Its dependency 'kotlin' was not found. Please, check whether 'kotlin' is loaded prior to 'js_test'.");

      at Resolver.resolveModule (node_modules/jest-resolve/build/index.js:221:17)
      at require (build/test/js_test.js:5:29)
      at Object.<anonymous> (build/test/js_test.js:1:2)

Test Suites: 1 failed, 1 total

What is the way to resolve JS dependencies?

Hi there, I'm relatively new to kotlin, and trying my first javascript project

how do I handle messages? I'm a bit confused by this declaration:

var onmessage: ((Event) -> dynamic)?

JVM modules are fine, but not JS modules

Having an issue with the Page.evaluateHandle function not working. When the function is called it doesn't complete, instead a coroutine exception occurs.

Can external modifier be a solution somehow? I mean, declare this class as external and let it be resolved from JS

Found a bizarre issue where a ClassCastException is thrown when accessing the first element from a List:

● org.webscene.core.test.dom › DomQueryTest › testFetchExistingPageId

    ClassCastException: Illegal cast

      36 |             element.hasAttribute("pageId")
      37 |         }
    > 38 |         return if (metaElements.isNotEmpty()) metaElements.first().getAttribute("pageId") ?: "" else ""
         |                                                            ^

Is there some sort of ServiceLoader mechanism for JS provided by Kotlin?

Are there any differences with casting in Kotlin JS compared to Kotlin JVM?