Need to hide the closed state value in earlier change task not for the last task in change request

[santhoshkumk786]

for a specific field choice list (4 choices) on change request we have CTASKs based on the short description (only string values and those created on same time after getting approvals). for the ctasks, need to hide the closed state value in earlier change task not for the last task in change request for this I written the client script and script include

Client script:

  var currentTaskId = g_form.getUniqueValue();

   var ga = new GlideAjax('ChangeTaskUtils');

   ga.addParm('sysparm_name', 'isLastTask');

   ga.addParm('sysparm_task_sysid', currentTaskId);

   ga.getXMLAnswer(function(answer) {

    if(answer === 'false') {

        g_form.removeOption('state', '3');

    }

   });

}

script include:

var ChangeTaskUtils = Class.create();

ChangeTaskUtils.prototype = Object.extendsObject(AbstractAjaxProcessor, {

    isLastTask: function() {

var taskSysId = this.getParameter('sysparm_task_sysid');

if(!taskSysId) return 'false';

var taskGR = new GlideRecord('change_task');

if(taskGR.get(taskSysId)){

        var changeGR = new GlideRecord('change_request');

        if(changeGR.get(taskGR.change_request)){

            var decommType = changeGR.u_decommission_type + '';

            var lastDesc = '';

                if(decommType == 'bot decommission') {

                    lastDesc = 'DEPLOYMENT';

                } else if(decommType == 'cost initiative project decommission') {

                    lastDesc = 'INFRA';

                } else if (decommType == 'partial decommission') {

                    lastDesc = 'SECURITY AUDIT';

                } else if(decommType == 'permanent decommission') {

                    lastDesc = 'SECURITY AUDIT';

                }

                if (taskGR.short_description.toString() == lastDesc) {

                    return 'true';

                    }

                }

            }

            return 'false';

        }

});

[Ankur Bawiskar]

@santhoshkumk786 

if it's not working then what debugging did you do?

If my response helped please mark it correct and close the thread so that it benefits future readers.