function product() {

  app.preloader.show();

  $.ajax({

    type: "get",

    url: base_url + 'product',

    success: (res) => {

      if (res.success) {

        app.preloader.hide();

        localStorage.removeItem('f03_product');  

        localStorage.setItem('f03_product', JSON.stringify({

          data: res.data

        }))

      } else {

        app.preloader.hide();

        app.dialog.alert(res.message, 'List product Error');

      }

    }

  })

}