gradle/compile-js.gradle

// Platform-specific configuration to compile JS modules

apply plugin: 'kotlin-platform-js'

tasks.withType(compileKotlin2Js.getClass()) {
    kotlinOptions {
        moduleKind = "umd"
        sourceMap = true
        metaInfo = true
        // drop -js suffix from outputFile
        def baseName = project.name - "-js"
        outputFile = new File(outputFile.parent, baseName + ".js")
    }
}

dependencies {
    compile "org.jetbrains.kotlin:kotlin-stdlib-js:$kotlin_version"
    testCompile "org.jetbrains.kotlin:kotlin-test-js:$kotlin_version"
}