kotlin_weird_stuff.kt

import java.util.*

infix fun <R> (() -> R).times(times: Int): List<R> = times.takeIf { it > 0 }
    ?.let { (1..it) }
    ?.map { this() }
    ?: emptyList()

inline infix operator fun <R> Int.times(block: () -> R): List<R> = this.takeIf { it > 0 }
    ?.let { (1..this) }
    ?.map { block() }
    ?: emptyList()

fun main() {
    val uuids1 = { UUID.randomUUID() } times 3
    val uuids2 = { UUID.randomUUID() }.times(4)
    val uuids3 = 3 times { UUID.randomUUID() }
    val uuids4 = 5 * { UUID.randomUUID() }

    println(uuids1)
    println(uuids2)
    println(uuids3)
    println(uuids4)
}