Kotlin coroutine debounce for EditText

debounce.kt

fun <T> debounce(
        waitMs: Long = 300L,
        scope: CoroutineScope,
        destinationFunction: (T) -> Unit
): (T) -> Unit {
    var debounceJob: Job? = null
    return { param: T ->
        debounceJob?.cancel()
        debounceJob = scope.launch {
            delay(waitMs)
            destinationFunction(param)
        }
    }
}


val debounceTextChange = debounce(300L, viewModel.viewModelScope, viewModel::search)

editText.onChange(debounceTextChange)

thank you very for inspiring me. I made some state sharing improvement for those who need the very same functionality but in a race condition:

@OptIn(ExperimentalCoroutinesApi::class, DelicateCoroutinesApi::class)
private fun <T> debounce(
    waitMs: Long = 300L,
    scope: CoroutineScope,
    destinationFunction: (T) -> Unit
): (T) -> Unit {
    var debounceJob: Job? = null
    val context = newSingleThreadContext("Debounce")
    return { param: T ->
        scope.launch {
            withContext(context) {
                debounceJob?.cancel()
                debounceJob = scope.launch {
                    delay(waitMs)
                    destinationFunction(param)
                }
            }
        }
    }
}