Trying coroutine. Kind of debounce.

TryDebounce.kt

import kotlinx.coroutines.*
/*
* Trying learning couroutine. Investigating for getting debounce effect. 
* Some inspiration from https://medium.com/@pro100svitlo/edittext-debounce-with-kotlin-coroutines-fd134d54f4e9
*/
fun main() {
    val list = listOf(1, 2, 3, 4, 5)
    
    var time = java.util.Calendar.getInstance().timeInMillis
    for (i in list) {
        Thread.sleep(15)  // block main thread for 15 milli seconds
        var timeNow = java.util.Calendar.getInstance().timeInMillis
        
        if (timeNow == time) {
            return
        }
        time = timeNow
        GlobalScope.launch { // launch new coroutine in background and continue
            delay(300) // non-blocking delay for 300 milli second (default time unit is ms)
            if (time != timeNow) {
                return@launch
            }
            println("World! $i") // print
        }
    }
    println("Hello,") // main thread continues while coroutine is delayed
    Thread.sleep(5000L) // block main thread for 5 seconds to keep JVM alive
}

https://medium.com/@pro100svitlo/edittext-debounce-with-kotlin-coroutines-fd134d54f4e9