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 

[Mohith Devatte · Accepted solution]

Hello @win b ,

No need to JSON just you can do like below in script include 

Remove the JSON and 7th and 15th line script include 

return existing.serial_number.toString();

Client script:

remove 17th line and just set the answer to the variable in set value

g_form.setValue('change_request_no',answer);

Hope this helps

Please mark my answer correct if this helps you

[win b]

Hi @Mohith Devatte i tried your solution but what i got on my field is blank.

(SI)
    getSerialNo: function() {
        var sysID = this.getParameter('sysparm_sysID');
        var existing = new GlideRecord('cmdb_ci');
        var existci = {};

        if (existing.get(sysID)) {
            existci.serial_number = existing.serial_number.toString();
       }
//        return JSON.stringify(existing);
        return existing.serial_number.toString();
    },
(CS)
var ga = new GlideAjax('SI_for_Generic_CMDB');
    ga.addParam('sysparm_name', 'getSerialNo');
    ga.addParam('sysparm_sysID', newValue);
    ga.getXML(Callback);

   function Callback(response) {
        var answer = response.responseXML.documentElement.getAttribute('answer');
        alert('my response-> ' + response);
 //       answer = JSON.parse(answer);
        alert('my obj-> ' + answer);
        alert('my obj2-> ' + answer.serial_number);
        g_form.setValue('change_request_no',answer);
}

[Mohith Devatte]

@win b TRY THIS SCRIPT 

Also let me know the output of the alert('my obj ->'+answer);

(SI)
    getSerialNo: function() {
        var sysID = this.getParameter('sysparm_sysID');
        var existing = new GlideRecord('cmdb_ci');
existing.addQuery('sys_id',sysID);
existing.query();

        if (existing.next()) {
           return existing.serial_number.toString();
       }

       
    },
(CS)
var ga = new GlideAjax('SI_for_Generic_CMDB');
    ga.addParam('sysparm_name', 'getSerialNo');
    ga.addParam('sysparm_sysID', newValue);
    ga.getXML(Callback);


   function Callback(response) {
        var answer = response.responseXML.documentElement.getAttribute('answer');
   
        alert('my obj-> ' + answer);

        g_form.setValue('change_request_no',answer);
}

[win b]

Hi @Mohith Devatte the alert is null.

my obj-> null