Now, I could do something like:

constructor(vararg cells: Cell, f: (List<T>) -> T)

but then the lambdas would go from

{ x, y -> x + y }

to something like

{ it[0] + it[1] }

which I guess would be ok, but not the most readable.

are there good resources to learn about generics in Kotlin, apart from the documentation (since it normally doesn't have examples xD, I think)

How can I get the classloader in Kotlin?

hey guys... I have a question. how's that expression translated to kotlin -> Set selectedValues = new HashSet();

At least I do 😀

oh i found it

C:\Users\scellow\AppData\Local\JetBrains\Toolbox\apps\IDEA-U\ch-0\171.2822.15\plugins\Kotlin\kotlinc\bin

hey everyone, I published a thing, I hope you find it useful: https://medium.com/@workingkills/pushing-the-limits-of-kotlin-annotation-processing-8611027b6711#.qb5vgokb3

Has anyone seen a bug on type inference for java classes with same short names? I don't want to file a duplicate bug. However I had an issue assigning a field with type of

java.sql.Date

. Although I have an import for that class in the calling class, when I call

Date.from(Instant)

the compiler is inferring

java.util.Date

instead of

java.sql.Date

. I had to give a type hint. I would have expected the compiler to make this inference based on the type of the target field.

Can't you inject it though using the Android Manifest file? http://stackoverflow.com/questions/2002288/static-way-to-get-context-on-android

@mfulton26 you can get the context from pretty much everywhere, views, fragments, services, boradcast receivers… why risking a context leak?

last one is the simplest

fun <T> Iterable<T>.batch(chunkSize: Int) = this
        .mapIndexed { i, item -> i to item }. // create index value pairs
        .groupBy { it.first / chunkSize }.    // create grouping index
        .map { it.value.map { it.second } }   // split into different partitions

Hi, are there some tools to check tests coverage in Kotlin?

Hi all, is there a way to turn off the Kotlin compiler daemon with a Gradle property or something? It doesn't play nicely with CI it seems

I’ve got a Java library that declares several subclasses of type

ClassifierTrainer<double[]>

I need to assign any such subclass to a Kotlin variable but can’t figure out a type that works. The obvious

ClassifierTrainer<Array<Double>>

fails. Anyone know the right way to do this?

Again, you're arguing preference. A fruitless discussion

This message was deleted.

I prefer

class A: B {}

So what about future of back-end kotlin development compare to Java 9?

Hmm, just discovered that smart cast doesn’t work for `obj::class.java`: http://try.kotlinlang.org/#/UserProjects/35drpmirdvt073pkk3s5nfsn8v/7v6kraquqm6trj9rjs0gj8erts Maybe anybody knows the reason of that

however, syntax for assigning val inside of an if condition would be quite helpful in cleaning up code, specially when used in some

if-else if-else

constructs

am i abusing 'by lazy' by having it be a property assigned to applicationContext (android). such that, in this entire file..if the context isn't up, you're kinda screwed anyway

sometimes you don't have a linenumber like in an empty catch clause. however that doesn't really answer the question about inline

there is free history without limits for this slack - http://kotlinlang.slackarchive.io/

Hi. I'm getting "Error:Kotlin: Source file or directory not found: " when trying to compile Kotlin.JS project. It is imported from Maven. What can be wrong with it?

does anybody have a good intro to properties for 100% java programmers?

i am so sick of the braindead kotlin refactor -> rename that just replaces any text occurrence across the entire project

@elect Download and install manually: https://plugins.jetbrains.com/idea/plugin/6954-kotlin

@yawkat please report verifyError to kotl.in/issue, as for slow compilation, we would need something we can profile.

If early exit is not required, something like this:

val a = listOf("a")
    val b = listOf("A")
    a.size == b.size && a.foldIndexed(true) { index: Int, acc: Boolean, s: String -> acc && b[index].equals(s, true)}