Kotlin for JavaScript
I'd be more interested if there was VSCode support. The JetBrains folks  response was ridiculous and dismissive:
<a href="https://discuss.kotlinlang.org/t/official-support-for-visual-studio-code/8242" rel="nofollow">https://discuss.kotlinlang.org/t/official-support-for-visual...</a><p>Apparently they refuse to support the most popular web IDE because Kotlin for JS is really about selling IDEA licenses. Fair enough, but it means I don't suggest Kotlin for anything except as a Java alternative and Android.<p>There's better options from companies that are less adversarial to their community.