OnChange Client Script is throwing error for field not defined - Support and Troubleshooting

OnChange Client Script is throwing error for field not defined Description  Symptoms -- onChange client script is throwing error on the form: 'onChange script error: ReferenceError: is not defined function () { [native code] }

-- Here is the example of the script that is throwing the error:

Cause -- Issue is happening as the script is written to expect 1 variable rather than an array to be returned for:

var callerforField = g_form.getElement('sys_display.' + g_form.getTableName() + '.caller_id'); -- The result is returned in an array because form has two 'Caller' fields.

Resolution There can be two solutions based on the requirement:

1. If duplicate fields are added on separate sections or same section accidentally removing duplicate fields will resolve the issue.

2. If there is a need to have two fields on the form, script need to be modified to work with the array:

var callerforField = g_form.getElement('sys_display.' + g_form.getTableName() + '.caller_id')[0];

or

var callerforField = g_form.getElement('sys_display.' + g_form.getTableName() + '.caller_id')[1];