BTW for those who say that Scala interop with Java is as easy, can you demonstrate how to use this from Java?
I think the claim there is more like "you can already use the huge amount libraries/your existing code with Java and, with care, you can make your Scala code work the other way" than "interop is seamless back and forth."
Well Kotlin does indeed claim that interop is seamless back and forth AFAIK.
Which is neat, but unless you are a library designer it's probably not that much of a selling point.
Major selling point is the ability to mix Kotlin and Java freely.
I just find it funny how Scala guys are saying "me too" at every opportunity. But that always comes with an asterisk, if you look closely.
IDE support is as good, Java interop is as good, etc.
Sorry, I didn't realize you were personally invested.
Well I like and use Kotlin, that's the extent of it. Scala is a non-starter for me.
How come? I started using it because my company did and I've found it pretty good, overall.
https://github.com/jankotek/mapdb
Scala was around for a long time, perhaps if I could look at it with fresh eyes now I would consider it, but somehow I always had a feeling that Scala isn't for me. And now as Kotlin gaining momentum I'd rather stick with Kotlin.
I want first class IDE support and straightforwardness in my workhorse languages. For hobby languages I'd rather play with something like Red or Perl 6.