const form = document.getElementsByClassName("form-control"); const mail = form[0].value; const pass = form[1].value; const data = { email: mail, password: pass }; localStorage.setItem("auth", JSON.stringify(data));

const form: Element[] = document.getElementsByClassName("form-control");
          const mail: string = form[0].value;
          const pass: string = form[1].value;
          const data: { email: string; password: string } = {
            email: mail,
            password: pass
          };
          localStorage.setItem("auth", JSON.stringify(data));