I want inherit java class from kotlin's

Function0<Unit>

but getting

return type void is not compatible with Unit
  where R is a type-variable:
    R extends Object declared in interface Function0

from the other hand i can't specify return type as

kotlin.Unit

in java. Is there any way to do it?

is there a scala vs kotlin cheat sheet? I briefly looked at Kotlin and have not found anything better than in even Scala. No pattern matching is a fantastically weird feature, for instance.

if (result != null && result.statusCode == 200 && result.data.elements != null) { completion(result.data!!.elements!!) return }

@johnl

if (result?.statusCode == 200) {
 result.data?.elements?.let { elements ->
   completion(elements)
   return
 }
}

Not the prettiest but no more

!!

let’s hope you’ll never get to “-10”, because build tools would probably get that wrong (“-2" > “-10”)

what is Kotlin/Native ?

Make Kotlin for iOS. Pretty please 😢

is there a good list somewhere of current companies using kotlin in a serious way? i'm aware of a few just based on blog posts, but maybe someone has a more comprehensive list

Someone could try and convince @irus to make a section on kotlin.link and collect public evidence of companies using Kotlin and submit 🙂

anyhoo i'm giving a talk at work this week to intro ppl to kotlin & show off some of it's features. we're a mainly java shop, with a bit of python & scala. If anybody would like to review my slides i'd appreciate it: https://gitpitch.com/gjesse/intro-to-kotlin/make-slides. something about this is that some of the slides have a vertical component, just arrow down on those to see the additional examples. There's less info on the slides cause of course i'll be taking about the examples & providing more info.

Is this a known issue that when moving a bunch of files to different package all imports disappear and all the types are replaced with FQCN?

Hi guys, what’s equivalent of

import static com.yourdomain.something.class

of Java in Kotlin?

To bad

I’m going to graduate this year and planning to apply for jr android dev jobs, should i spend time on kotlin and rxjava or focus on something else?

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About user groups. The interesting thing is that there are no Russian groups. I wonder if there are any kotlin users at MIPT (https://mipt.ru/). I am currently using kotlin in my seminar on applied programming in experimental physics. Maybe there are some local courses that I can recommend to students.

Is it possible to create custom compiler plugins (https://kotlinlang.org/docs/reference/compiler-plugins.html)?

Where the type can be one or the other?

has anyone found a use for extending a lambda? i was surprised to find that they are open classes.

class MyLambda : () -> Unit {
  override invoke() {
    // uh...
  }
}

Hi, about Kotlin compiler plugins, is it possible to activate a plugin just by having a jar in the compilation classpath? /cc @ilya.chernikov

@nkiesel True. Class would be more useful only if you had more logic to be done inside that function. Those could be defined as other private functions encapsulated inside that class.

Is there something like C# Enumerable.Range to generate list with numbers from 1 to 100?

cool, didn't know it existed

or if you know the number of jobs you’re awaiting from the start, and don’t mind blocking the main thread (which you might be doing with the while (?)) use CountDownLatch

was

const val

in 1.0? or is this something new?

@Sola link?

<!channel> So this has finally happened: Google has announced that Kotlin is now a first-class, officially supported language for Android development. This has happened largely because of you - members of our awesome community, sharing your experiences, infecting others with your enthusiasm, pestering the Android team with your questions. Huge thanks to you folks from everyone on our team! And let's party! 🎉

Kotlin is now an incredible option for a data science company - server side, ML side and app side. awesome stuff.

I must admit it feels really exiting when you see it happening once you already know the language 😄