The selection model has an `items[]` property that holds the 
_row id_ for each record. 

Call the table's view `getRecordByRowId()` method to get the corresponding record.

    onSelectedItemsClick(data) {
        const table = this.getReference('table');
        const view = table.getView();
        const records = table.selectionModel.items
            .map(rowId => view.getRecordByRowId(rowId));
        console.log(records);
    }
