Stripe experrience anyone?

what’s eitherT from arrow? what’s the monad transformer?

Hello Anyone has exp with moshi when dealing with different types on the same property? My specific use case, I have a variable that sometimes returns an object and others a boolean 🤷‍♂️ I know this must be done with adapters but I haven’t been able to get it to work, since all the examples I read is from a int to bool or something like that, not primitive to object Thanks in advance 💪 ```

Hey, what's the current state of database support in kotlin? I plan on building a rest api using ktor. Suprisingly, I couldn't find a proper async driver for MariaDB. Is there a reliable JDBC wrapper using kotlin coroutines?

Are inline functions like

forEach

,

forEachIndex

,

File.walk()

just syntactic sugar that I can use instead of

(for x in y)

or should I be much for careful when using them? I've discovered that

forEach

cannot be mocked with a library like mockk and that's playing havoc with my testing.

Hi! When I extend a Java method that has

String[]

in signature Kotlin recommends to have it as

Array<out String>

. It is literally useless because

String

is

final

in Java.

are there any built in sealed classes that accepts any primitive?

Hi, where Can I find the kotlin language specification?

Does

public static <T extends Enum<T>> T valueOf(Class<T> enumType, String name)

of

Java.lang.Enum

not have an equivalent in Kotlin? If not, why not?

But we can skip the index if we need?

Is this type inference bug?

list

is

MutableList<Bucket>

This message was deleted.

somethings wrong with my SAM conversions

@Saiedmomen try to explicitly enter the type like

val x: Observable<Optional<String>> = ...

could anyone explain why smart-cast doesn’t work for range checks?

if (pin?.length != 36) throw UnauthorizedResponse()
// pin is smart cast here

if (pin?.length !in (8..36)) throw UnauthorizedResponse()
// pin is not smart cast here

Is there already a ticket to discuss possibilities to improve destructuring in Kotlin? I find this to be very very confusing, especially comparing to Javascript:

interface Parent {
    val a: String
    val b: String
}

data class Person1(
    override val a: String = "Person1 a",
    override val b: String = "Person1 b"
): Parent

data class Person2(
        override val b: String = "Person2 b",
        override val a: String = "Person2 a"
): Parent

fun main() {
    val person1 = Person1()
    val person2 = Person2()
    
    person1.let {
        val (a, b) = person1
        println("Destructuing person1, a is ${a}, b is ${b}")
	}
    person2.let {
        val (a, b) = person2
        println("Destructuing person2, a is ${a}, b is ${b}")
	}
}

Results in

Destructuing person1, a is Person1 a, b is Person1 b
Destructuing person2, a is Person2 b, b is Person2 a

https://pl.kotl.in/sUDuggWbx

Hi guys, any idea when the next 1.3.50-eap of the gradle plugin is coming?

*Unfortunately we have troubles with running all tests when they are mixed

junit

&

spek

. We would like to migrate from

Spek 2

framework to pure

junit4

in our project. In our case that’s a ton of tests. Have you seen any converter that does that?

is there a way to invoke

associateBy

which would support a mapping that was one to many? i.e. translate a

List<Foo>

where

Foo

is, say,

data class Foo(val valueOne: Int, val valueTwo: String)

to a

Map<Int, List<String>>

?

A general query, what would be a good approach to start a Kotlin frontend project. Should I go about using the Kotlin HTML DSL, or should I do a React interop. The backend is Kotlin first with Ktor and exposed. I was preferring Kotlin route but didn't find good references to start something there. Any pointers?

Anyone know of a good way to print deeply nested data classes with indentation

I cannot seem to find a way to access date/time/timestamps in Kotlin Native. Am I just blind or is there no out of the box way? Any suggestions?

What HTTP lib would you suggest for screenscraping (saving session cookies etc)? I’m looking for something like “requests” for python and scala. Ease of use would be the biggest factor

Is ther a way to get rid of all the @UseExperimental like declarations, wasn't there a way to just specify this to the compiler via gradle?

is

import MyClass as SomeType

the same as

import MyClass
typealias SomeType = MyClass

?

Hey folks, I was wondering, what mechanism in Kotlin allows that

java.util.LinkedHashMap<Int,Int>

somehow implements

kotlin.collections.Map<Int,Int>

? Is there scala-style implicit conversion / wrapping going on?

val lhm: kotlin.collections.Map<Int, Int> = java.util.LinkedHashMap()

How can I set a close event for a view in TornadoFX? I have been searching the documentation and ide autocomplete and cannot figure it out.

Is it possible to reference a specific inheritor from an abstract parent, rather than any possible inheritor? For example, if I have a

abstract class State

with some helper functions, can I have them return the child type, without it getting generalized to just “anything that inherits from `State`“?