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  • m

    manuelp22

    11/03/2016, 8:43 PM
    Those don't work yet, but I'll rebuild the project with unambiguous names and get back to you if it works
  • m

    manuelp22

    11/03/2016, 8:43 PM
    Btw, where can I find the alert() API ?
  • m

    manuelp22

    11/03/2016, 8:43 PM
    documentation
  • k

    konsoletyper

    11/03/2016, 8:47 PM
    What do you mean? 
    alert
    function in Kotlin?
  • k

    konsoletyper

    11/03/2016, 8:49 PM
    Here is a file where 
    alert
    is defined: https://github.com/JetBrains/kotlin/blob/master/js/js.libraries/src/generated/org.w3c.dom.kt (actually, it's generated from IDL)
  • k

    konsoletyper

    11/03/2016, 8:51 PM
  • k

    konsoletyper

    11/03/2016, 8:52 PM
    I guess, this should work:
    Copy code
    import kotlin.browser.*

fun main(args: Array<String>) {
    window.alert("Hello, world!")
}
  • k

    konsoletyper

    11/03/2016, 8:53 PM
    Another way is to define alert function yourself, i.e.:
    Copy code
    @native fun alert(message: Any?) {}
  • k

    konsoletyper

    11/03/2016, 8:53 PM
    The third way:
    Copy code
    js("window").alert("Hello, world!")
  • m

    manuelp22

    11/03/2016, 9:44 PM
  • m

    manuelp22

    11/03/2016, 9:47 PM
    ^ Thanks to @konsoletyper and @bashor It all works now
  • m

    manuelp22

    11/03/2016, 9:48 PM
    <a onclick="KotlinProject.testMethod()" href="#">
  • o

    oluwasayo

    11/03/2016, 10:30 PM
    @oluwasayo has left the channel
  • m

    manuelp22

    11/04/2016, 12:13 PM
    Quick question: 1) When calling a Kotlin function from Javascript: it works well like this in a HTML 
    ⁠⁠⁠⁠<button onclick="SampleProject.testMethod()" href="#">SUBMIT</button>
    2) But when calling a Kotlin function with a parameter from Javascript: Like this 
    ⁠⁠⁠⁠<button onclick="SampleProject.testMethodWithParam(25)" href="#">SUBMIT</button>
    I get the following error for that line 
    TypeError: SampleProject.testMethodWithParam is not a function
    Main.kt is:
    Copy code
    // this works
public fun testMethod(){
    println("testMethod triggered")
}

// this does not work
public fun testMethodWithParam(something: Int){
    println("testMethodWithParam triggered")
}
  • k

    kirillrakhman

    11/04/2016, 12:16 PM
    @manuelp22 I'm not a js expert but you should be able to inspect the generated js from your kotlin code, maybe it will give you a hint
  • m

    manuelp22

    11/04/2016, 12:18 PM
    @kirillrakhman You were right! There's a weird anomaly there.
    Copy code
    testMethod: function () {
      Kotlin.println('testMethod triggered');
    },
    testMethodWithParam_za3lpa$: function (something) {
      Kotlin.println('testMethodWithParam triggered');
    },
  • m

    manuelp22

    11/04/2016, 12:19 PM
    Somehow the name has been mixed with strange characters 
    _za3lpa$
  • m

    manuelp22

    11/04/2016, 12:20 PM
    Manually removing those characters makes the method work
  • k

    kirillrakhman

    11/04/2016, 12:20 PM
    it will be reverted once you recompile your code
  • m

    manuelp22

    11/04/2016, 12:20 PM
    Yes, this looks like a bug
  • k

    kirillrakhman

    11/04/2016, 12:21 PM
    can you try to annotate your method with 
    @JsName("testMethodWithParam")
    ?
  • k

    kirillrakhman

    11/04/2016, 12:21 PM
    which kotlin version do you use?
  • k

    kirillrakhman

    11/04/2016, 12:22 PM
    according to https://youtrack.jetbrains.com/issue/KT-2752 it's available in 1.0.5 which is currently in EAP
  • m

    manuelp22

    11/04/2016, 12:22 PM
    Kotlin 1.0.4 I just installed it
  • k

    kirillrakhman

    11/04/2016, 12:23 PM
    can you try 1.0.5 eap?
  • k

    kirillrakhman

    11/04/2016, 12:23 PM
  • m

    manuelp22

    11/04/2016, 12:23 PM
    Yes, thanks. I'll get back to you with results
    👍 1
  • m

    manuelp22

    11/04/2016, 12:32 PM
    @kirillrakhman It all works now. Thank you very much for your help
  • k

    konsoletyper

    11/04/2016, 12:49 PM
    @manuelp22 that's not anomaly. JS is a dynamically-typed language, so it does not support overloading functions by signature. Therefore Kotlin compiler applies name mangling to Kotlin functions with non-empty parameter list. Mangled names look rather weird and unpredictable, but they are stable, and won't change unless you change function signature.
    👍 2
  • p

    pdvrieze

    11/09/2016, 11:53 AM
    I've had some weird bug. With 1.0.5 my javascript main is no longer called automatically (it did work with 1.0.4). The only difference is the kotlin version (for info, I configured moduleKind="umd". I'm currently trying to run it without specifying module kind.
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