How to find the duration of a loop running.

[JennyAug13]

Hi, how can i find the duration of my for loop using a timer in qml? So that, i want to stop another parallel process for that duration of time.

I found following examples on timer on internet.

Timer{
        id: visibilityCheckTimer
        running: false
        repeat: false
        property var callBack
        onTriggered: callBack()
    }

    function setTimeout(callback, delay)
    {
        if(timer.running)
        {
          console.log("nested calls to setTimeout are not supported");
          return;
        }
        visibilityCheckTimer.callBack = callback;
        timer.interval = delay + 1;
        timer.running = true;
    }

Thanks in advance.

[sierdzio]

There is no API for getting elapsed time of a loop. You'd need to use another Timer component to measure the running time.

[SeeLook]

Hi,

What if use Date().getTime() to obtain current time in ms, then compare it in next Timer loop?

Timer {
    id: timer
    repeat: true
    property real prevTime: 0
    onTriggered: {
      var currTime = new Date().getTime()
      if (prevTime > 0) { // skip first loop
        console.log("timer loop took",  currTime - prevTime + "[ms]")
        prevTime = currTime
      }
    }
}