Hi Robert, hope you are doing well! Is there suppo...

# kvision

[Jörg Rade]

Hi Robert,
hope you are doing well!
Is there support for datetime including local?

[Robert Jaros]

Hi,
On the frontend side only JS Date is used.

[Robert Jaros]

If you are using fullstack, you can use datetime types which are mapped to java.time.* in the backend code.

[Jörg Rade]

What I have in mind is something like this:

import kotlinx.browser.document
import org.w3c.dom.HTMLInputElement

fun main() {
    val hoursInput = document.getElementById("hoursInput") as HTMLInputElement
    val minutesInput = document.getElementById("minutesInput") as HTMLInputElement
    val secondsInput = document.getElementById("secondsInput") as HTMLInputElement
    val timestampDisplay = document.getElementById("timestampDisplay")

    hoursInput.addEventListener("input", ::updateTimestamp)
    minutesInput.addEventListener("input", ::updateTimestamp)
    secondsInput.addEventListener("input", ::updateTimestamp)

    updateTimestamp()
}

fun updateTimestamp() {
    val hours = (document.getElementById("hoursInput") as HTMLInputElement).value.padStart(2, '0')
    val minutes = (document.getElementById("minutesInput") as HTMLInputElement).value.padStart(2, '0')
    val seconds = (document.getElementById("secondsInput") as HTMLInputElement).value.padStart(2, '0')

    val timestamp = "$hours:$minutes:$seconds"
    document.getElementById("timestampDisplay")?.textContent = timestamp
}

[Jörg Rade]

At which points could i make better use of KVision?

[Robert Jaros]

I think what you need is kotlinx-datetime (perhaps even with this extension lib https://github.com/RaedGhazal/kotlinx-datetime-ext). You can easily use this with KVision (or any other Kotlin/JS app) just to process date/time values.