如何从dataTables中获取不同的值，并使用JS对总的特定字段求和

<table id="myTable">
  <thead>
    <tr>
      <th>Name</th>
      <th>Value</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Item 1</td>
      <td>10</td>
    </tr>
    <tr>
      <td>Item 2</td>
      <td>20</td>
    </tr>
    <tr>
      <td>Item 1</td>
      <td>30</td>
    </tr>
  </tbody>
</table>

$(document).ready(function() {
  var table = $('#myTable').DataTable();

  var uniqueValues = [];
  var sum = 0;

  table.column(0).data().each(function(value, index) {
    if (!uniqueValues.includes(value)) {
      uniqueValues.push(value);
    }
  });

  uniqueValues.forEach(function(value) {
    var rows = table.rows(function(index, data, node) {
      return data[0] === value;
    }).data();

    var columnData = rows.toArray().map(function(row) {
      return parseInt(row[1]);
    });

    var columnSum = columnData.reduce(function(a, b) {
      return a + b;
    }, 0);

    sum += columnSum;
  });

  console.log('Sum:', sum);
});