How to read values after a job is completed?

Still struggling with this one. The value of console.log(laststatus.machine.position.work.a) is red long before the router comes to standstill. How can I change the code so that it waits until the machine comes to the end of the routine?

function goZeroRef()
{
zeroXDrillLocation = zeroXRef + drillDiameter/2 + stockWidth - stepIncrements;
zeroYDrillLocation = zeroYRef + drillDiameter/2;
zeroZDrillLovation = cutDepth;
sendGcode("G01 F3000 Z" + safeZ);
sendGcode("G01 F3000 X" + zeroXDrillLocation);
sendGcode("G01 F3000 Z" + cutDepth);
console.log(laststatus.machine.position.work.a);
}

 

Appreciated very much. This sync/async javascript thing gives me headaches ...
(changed the : to ; to make it work). Thanks a lot !!!

setTimeout(function() {
var waitingToReadValue = setInterval(function(){
if (laststatus.comms.runStatus == "Idle") {
clearInterval(waitingToReadValue );
console.log(laststatus.machine.position.work.a);
}
}, 100)
}, 500)