Personally, I would try to avoid

null

though.

how can I slice a list in Kotlin?

@victortong That's interesting. You really think Kotlin feels like C#? I don't think I'd ever use Kotlin if it felt like C# to me. Coming from C# to Kotlin is one heck of a relief.

use ` ``` ` to wrap your code

then use it in kotlin instead of "dynamic" type, type aliases will help to have the same code in "testing-generation" phase and "hot" phase

wait, so it's possible? @sreich

I'd need to have a top level property and initialize it later. Since

lateinit

is not available for this case, which is my best alternative?

Hey guys! Why code completion doesn’t suggest and help to create anonymous class object in kotlin? When creating arguments for RxJava methods I used to tap “( new” and than just could hit enter and get the whole instance declaration with overided methods. How can I achive the same in Kotlin? (get ready instance with code completion)

@victortong C-F12?

fun foo(a: ClassA) {
    val b: ClassA.ClassB = with(a) {
        object : ClassA.ClassB() {

        }
    }
    println(b)
}

Given the above code, IDEA does not complain, but the compiler throws an internal error when trying to compile it. This may be a bug...

Good point. So I just have to list all the array variants that Kotlin supports. Would be a nice candidate for the stdlib... Thanks for your help!

@stoyicker can you please post your "build.gradle"

that works (surprisingly), but

println(""""""hello""")

does not (and neither does

println(""""""hello"""""")

)

Yeah, any method call on the object can use the

?.

notation for safety

I don’t think the

.flatMap { it }

in this case is really doing anything. But I’ve been working with RxJava a lot lately (that has a different flatMap) so I’m probably confusing myself

Hey guys, I have a background in python and want to learn Kotlin. Is it a good idea to learn java before Kotlin? I'm just unsure where to start with Kotlin.

Ok thanks guys for the info. I was advised by another to do the koans and I'm doing those now. I was looking at Kotlin in action too

@victortong: i think you need the

operator

modifier

I ended up doing something similar

^ It is not initialized, it has overridden getter

It’s just a shortcoming of the

..

operator. I’m fairly certain that’s intended behavior, even though it got me too the first time I tried to count down.

I need help with enums. Is possible to go to next enum value easier than solution in this example? http://try.kotlinlang.org/#/UserProjects/vfgallbbhplq0mau2aatvj7u4h/m3qu18a7lgpdl7tjr76vpr1a4i

I don’t think there is

asIterable

for an iterator…

why isn’t the return type

ImmutableList

?

Are `constructor`s automatically `inline`d?

@Tristan Caron Well, how are you imagining this would work? To implement the interface, you have to know what functions and properties the interface defines at compile time - that's not possible with normal generics.

Thank you, didn't know about that channel. Found the GSK snapshot compatible with rc-91

Hi all. I’m about to get into Kotlin. Would you recommend using dependency injection (and if so, what’s a great framework for it), or would it be doing it wrong going that route with Kotlin? When coding Java, I prefer to work with Guice fwiw.

Just as an idea

fun loadCoupons(): Observable =
        loadCouponsCachedObservable ?:
                createObservable().apply { loadCouponsCachedObservable = this }

I am not sure that I understand what single exclamation mark means. Can you explain, please?