carbon-components-svelte/docs/src/pages/framed/DataTable/DataTableBatchSelectionToolbar.svelte

<script>
  import {
    DataTable,
    Toolbar,
    ToolbarContent,
    ToolbarSearch,
    ToolbarBatchActions,
    Button,
  } from "carbon-components-svelte";
  import Save16 from "carbon-icons-svelte/lib/Save16";

  const headers = [
    { key: "name", value: "Name" },
    { key: "port", value: "Port" },
    { key: "rule", value: "Rule" },
  ];

  const rows = [
    { id: "a", name: "Load Balancer 3", port: 3000, rule: "Round robin" },
    { id: "b", name: "Load Balancer 1", port: 443, rule: "Round robin" },
    { id: "c", name: "Load Balancer 2", port: 80, rule: "DNS delegation" },
    { id: "d", name: "Load Balancer 6", port: 3000, rule: "Round robin" },
    { id: "e", name: "Load Balancer 4", port: 443, rule: "Round robin" },
    { id: "f", name: "Load Balancer 5", port: 80, rule: "DNS delegation" },
  ];

  let selectedRowIds = [rows[0].id, rows[1].id];

  $: console.log("selectedRowIds", selectedRowIds);
</script>

<DataTable batchSelection bind:selectedRowIds headers="{headers}" rows="{rows}">
  <Toolbar>
    <ToolbarBatchActions>
      <Button icon="{Save16}">Save</Button>
    </ToolbarBatchActions>
    <ToolbarContent>
      <ToolbarSearch />
      <Button>Create</Button>
    </ToolbarContent>
  </Toolbar>
</DataTable>