Similar to optional in Java 8

It's a Scala type

understood

well Scala has it but to call it a Scala type is calling Maybe a Haskell type 😉

😲 😅

Option is just a concept and a couple of libraries on github have implemented it

I guess @dh44t implementation is the most popular for Kotlin https://github.com/MarioAriasC/funKTionale/blob/master/src/main/kotlin/org/funktionale/option/Option.kt

that recent article on function programming had a type in it ... maybe funKTionale ... drat, MARK!

I think language change requests & discussions / arguments were going to be in another channel that is not #C0922A726, because the JetBrains guys can't spend time wading through language arguments to find things that need help or more immediate attention. And every Nth new person in this group wants to talk about their favourite thing missing. So we will repeat.

Ah, there it is #C0B9K7EP2 ... and for the library #C0B8Q383C

Morning, attaching to yesterday discussion I really like

listener?.invoke(…)

, got used to it and I think that its readable enough. simple smile

I believe listeners should be a list, not one or none

mainly yes, better case would be with optional callback (e.g. in method), but in Android SDK there are many single listeners (and ones replace others)

since

javaClass()

was deprecated how would one get class literal with generic type?

::class.java

and when trying to mock and get specific type?

Same question was asked on the forum https://devnet.jetbrains.com/thread/473043?tstart=0 with possible solutions

yep, found that one too after asking here… Google first… simple smile

Hello everyone, I am getting this error with IntelliJ 14 for a maven kotlin project and the updated plugin

ErrorKotlin Class 'kotlin/Pair' was compiled with an incompatible version of Kotlin. Its ABI version is 0.23.0, expected ABI version is 0.25.0 (/Users/admin/.m2/repository/org/jetbrains/kotlin/kotlin-stdlib/0.12.1230/kotlin-stdlib-0.12.1230.jar!/kotlin/Pair.class)

how can I change the version of kotlin for new plugin

What version do you have set for <artifactId>kotlin-maven-plugin</artifactId> ?

I have 0.12.1230

but I want to use this one

But inteillj is negative to understand that I am working with 0.12.1230

You probably have installed M13 plugin? Plugin in IntelliJ should be of same version as compiler in your maven.

@orangy: Are there any plans to change it to easier maintain multiple projects with different kotlin versions? Now, when we update one project, we need to update others.

After v1.0 we expect to never change ABI again (scary!) and if anything will maintain compatibility. For now I’m sorry, but it would take a lot of resources to maintain it.

It's fun, I always have Intellij ultimate on current Kotlin, and Intellij community edition on Kotlin snapshot or next. That is the work-around until ABI stabilizes.

Dark theme is current, white theme is next.

It's like Luke vs Darth... But I always move towards the light...