create a list asynchronously in Kotlin

list_creation_pattern.kt

import kotlinx.coroutines.*


fun run() = runBlocking {
    val l: List<Deferred<Int>> = List(100_000) {
        async {
            delay(1000)
            it
        }
    }
    l.map { it -> it.await() }
}

fun main(args: Array<String>) {
    val l = run()
    println("finished running")
    l.forEach { print("$it, ") }
}