I thought that only affects whether or not you can expand or contract the size of the list

i'll look into it

I don't like

repeat

when you actually use the index, it reads wrong to me. So I'd replace that with a for loop instead. I always like the

StringBuilder

/

apply

combo, so that's fine IMO.

finished the project. thanks for all the help guys!

Trying to update my Kotlin Version to

1.3-M2

so I can mess around with Coroutines

0.26.0

, but I'm getting this error:

Could not find org.jetbrains.kotlin:kotlin-gradle-plugin:1.3-M2.
Searched in the following locations:
    <https://dl.google.com/dl/android/maven2/org/jetbrains/kotlin/kotlin-gradle-plugin/1.3-M2/kotlin-gradle-plugin-1.3-M2.pom>
    <https://dl.google.com/dl/android/maven2/org/jetbrains/kotlin/kotlin-gradle-plugin/1.3-M2/kotlin-gradle-plugin-1.3-M2.jar>
    <https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-gradle-plugin/1.3-M2/kotlin-gradle-plugin-1.3-M2.pom>
    <https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-gradle-plugin/1.3-M2/kotlin-gradle-plugin-1.3-M2.jar>
Required by:
    project :

Any good open source projects for beginners to start contributing in kotlin

so extract that somwhere and save it alongside your tablecells

here's some context:

@karelpeeters what’s up? 😅

r u guys trolling me 😄 whats going on

where are you seeing that?

how do I make a constructor for a class that may throw an exception and thus does not instantiate?

Well it's not useful to do this,

3, else

is just

else

right?

Am I doing something wrong?

jacksonObjectMapper().convertValue("{\"name\":\"Jack\",\"age\":7}", Dog.class)

data class Dog(
    val name: String,
    val age: Int
)

doing:

objectMapper.convertValue<Dog>("{\"name\":\"Jack\",\"age\":7}")

throws:

Cannot construct instance of `com.example.Dog` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('{"name":"Jack","age":7}')
 at [Source: UNKNOWN; line: -1, column: -1]

What does mean

Cannot use 'CapturedTypeConstructor(out ObjectProperty<Any>)' as reified type parameter

?

Ouch, seems that I can't override abstract

StringConverter<T>

with another parametric class

out Any

cannot be passed as

reified

, can it? When my code passes

<SomeType, out Any>

as

<S, reified T>

i’d like to take a

HashMap

and sort it by its keys, but i only really care about having a specific key at the beginning, the rest of them don’t matter. something like

val myHashMap = HashMap<String, Int>
myHashMap.put("hello", 0)
myHashMap.put("world", 1)
val sorted = myHashMap.toSortedMap(compareBy { it == "world" })

can anyone help me figure out how to do that?

the plugin warns you when it cannot inlineand so would kotlinc, i assume if it does not error .. that it inlines

it doesn't. Here testFilterType just returns the entire list and has no reified logic

getFilteredList<Int>( list, List<Any?>::testFilterType  )

    private fun <T> List<Any?>.testFilterType() : List<Any?> {

        val filteredList = mutableListOf<Any?>()

        forEach {
                filteredList.add( it )
        }

        return filteredList
    }

    private fun <T> getFilteredList( list : List<Any?>, filter : List<Any?>.() -> List<Any?> ) : List<Any?> {
        return list.filter()
    }

I am really new to Kotlin, coming from PHP. All the tutorials that I've seen so far tell me to use Gradle or Maven, but I don't really understand why I need them. The docs are pretty bad, they don't really explain what it does or why I need it, they just explain how to set it up. This is probably because I come from PHP, I don't think there is an equivalent thing there. Can someone shed some light for me on why I need Gradle/Maven and what they actually do?

Hello ! I have a question on Coroutines. I have an Activity (it's for an android program, but the question itself hasn't much to do with android) that tries to connect to a socket using a coroutine. When it fails/succeeds, it calls another function. But the function is possibly executing in another thread, which makes it impossible to call a Toast for example. Is there anyway to have a coroutine call a function that executes in the parent thread ? EDIT: Replaced the pastebin with a public gist with my awful beginner code 🙂 https://gist.github.com/CamilleBC/bfe3b3234d52a0a501656d593c186108

noob question: Why isn't all inline functions reified by default?

Someone happened to ask the same thing yesterday 😒imple_smile:

Is there any way to create named fields of a class dynamically run-time?

Hey! I am trying to cast a Boolean to String (true -> "1" | false -> "0"). This is because the API I am talking to uses 1 and 0. Is there a better way to do that than the method I am using?

val boolToString = if (boolean) "1" else "0"

can I add a "!" or something else ?

yes