get the postalcode value . concode_field_sep String country concode_elem_sep String address2 concode_elem_sep String city concode_elem_sep String address1 concode_elem_sep String postalCode concode_elem_sep String state concode_field_sep String country concode_elem_sep Address withPostalCode concode_elem_sep Address withCity concode_elem_sep String address2 concode_elem_sep String city concode_elem_sep String address1 concode_elem_sep Address withState concode_elem_sep Address withAddress1 concode_elem_sep Address withCountry concode_elem_sep String state concode_elem_sep Address withAddress2
String function ( ) { return this . postalCode ; }