How to retrieve the filtered data table items (as an array) when using a custom data table search filter

问题

There is nice documentation of vuetify version 2 about how override the default data table search filtering used with search prop by supplying a function to the custom-filter prop here.

Everything understood / it works fine.

But how can I retrieve the filtered data table items (as an array) within the custom search filter method in vuetify version 2?

methods: {
      filterOnlyCapsText (value, search, item) {
        ...
        //want to do sth like this here
        this.filteredTableData = items;
        ...

      },

Here is the complete pen from the vuetify documentation example.

来源：https://stackoverflow.com/questions/57576512/how-to-retrieve-the-filtered-data-table-items-as-an-array-when-using-a-custom