Object Output to String Upon GlideAjax

[win b]

Hi can you help me on this. i know its kind of correct but i think i missed on some steps on the ff scenario for retrieving the value of serial number in the cmbd_ci table. on my client script i did an onchange script were it gives me the value of the serial number but upon setting the value it display as an object not on string. 

in my Script Include(SI) here is what i did.

and upon running in my portal this is what i got
on my first alert

on my second alert

what i got on the setvalue is obj which supposed to be the serial number 

[Harshad Wagh]

in your script include you are returning the "existing" object.

Please replace it with following line (Line no 20)

return JSON.stringify(existci);

[win b]

@Harshad Wagh  when i tried that it displays only this {} on my value 

[Abhijit4]

Update your script past as below,

Client script : 

var ga = new GlideAjax( 'SI_for_Generic_CMDB');
ga.addParam('sysparm_name', 'getSerialNo');
ga.addParam('sysparm_sysID', newValue);
ga.getXMLAnswer(Callback);
function Callback(response) {
g_form.setValue('change_request_no', response);
}

Script Include :

getSerialNo: function() {
var serialNumber="";
var sysID = this.getParameter('sysparm_sySID'); 
var existing = new GlideRecord('cmdb_ci'); 
if (existing.get(sysID)) {
serialNumber= existing.serial_number;
}
return serialNumber;

Let me know if you have any further queries.

Please mark this as Correct or Helpful if it helps.

Regards,
Abhijit
Community Rising Star 2022

[win b]

i tried your code too but it displays on my end as blank