some of the states

const [initialValues, setInitialValues] = useState({
  companyname: "",
  website: "",
  email: "",
  phone: "",
 
});
const [formValues, setFormValues] = useState([]);

const handleSubmit = () => {

  setFormValues((prevFormValues) => [...prevFormValues, initialValues]);
}

**i tried to apply logic to store only unique data and non empty data from form field but get confused in localStorage using setItem to formValues key element **

 useEffect(() => {

           
     
               }, [formValues]);