work on jobStack

import QtQuick 2.12
import QtQuick.Controls 2.5
import QtQuick.Controls.impl 2.5
import QtGraphicalEffects 1.0


Rectangle {
    id: root
    anchors.fill: parent
    color: "black"
    property var unfinishedPrintJob : ([])


    Button {
        width: 100
        height: 50
        onClicked: {
            getUnfinishedPrintJob();
        }

    }

    Button {
        y:80
        width: 100
        height: 50
        onClicked: {
            pushUnfinishedPrintJob(3, 999, true);
        }
    }

    function getUnfinishedPrintJob () {
        let i;
        for (i=0; i<10; i++) {
            unfinishedPrintJob.push({
                id: i, //jobName
                cycle: i*2, //
                done: false
            });
            //console.log(unfinishedPrintJob[i]);
            //console.log('test');

        }
        console.log(JSON.stringify(unfinishedPrintJob) );
    }



    function pushUnfinishedPrintJob (jobId, jobCycle, jobDone) {
        var newJob = {
            id: jobId, //jobName
            cycle: jobCycle, //
            done: jobDone
        }

        getUnfinishedPrintJob();

        if (unfinishedPrintJob == undefined)
            unfinishedPrintJob = [];


        //if ( (returnedItem = (order.returned).find(item => item.idPos == idx ))
        var unfinishedIndex;
        if ( unfinishedIndex = unfinishedPrintJob.findIndex(item => item.id == jobId)) {

            unfinishedPrintJob.splice(unfinishedIndex, 1, newJob);

            // if (unfinishedPrintJob) {
            //  for (var item in unfinishedPrintJob) {

            //   }

        } else {
            unfinishedPrintJob = [];
            unfinishedPrintJob.push(newJob);
        }

        //setUnfinishedPrintJob();
        console.log('' );
        console.log(JSON.stringify(unfinishedPrintJob) );
        console.log('------------------' );
    }
}