async/await comparison between Kotlin, C#, Typescript

Main.kt

import kotlinx.coroutines.delay

fun main() {
    fireAndForget()
}

/* C#
public static async Task Main(string[] args)
{
    fireAndForget();
}
*/

/* Typescript
function main(...args: string[]) {
    fireAndForget().then()
}
*/

fun fireAndForget() = launch { // GlobalScope.launch(Dispatchers.Main)
    val data = fetchDataAsync().await() // GlobalScope.async
    println(data)
}

/* C#
async Task fireAndForget()
{
    var data = await fetchDataAsync();
    Console.WriteLine(data);
}
*/

/* Typescript
async function fireAndForget() {
    const data = await fetchDataAsync()
    console.log(data)
}
*/

fun fetchDataAsync() = async {
    delay(3_000)
    return@async "Hello Coroutine!"
}

/* C#
async Task<string> fetchDataAsync()
{
    await Task.Delay(1000);
    return "Hello Coroutine!";
}
*/

/* Typescript
async function fetchDataAsync() {
    await delay(1_000)
    return "Hello Coroutine!"
}
*/