drag n drop for tables

v-data-table-sortable-demo.js

         let table = document.querySelector("tbody");
          const _self = this;
          // this way we avoid data binding
          _self.dragNdrop = JSON.parse(JSON.stringify(_self.formItems));

          Sortable.create(table, {
            onEnd({
              newIndex,
              oldIndex
            }) {
              _self.dragNdrop.splice(
                newIndex,
                0,
                ..._self.dragNdrop.splice(oldIndex, 1)
              );
              console.log(_self.dragNdrop);
            }
          });