How can I get jQuery DataTables to sort on hidden value, but search on displayed value?

I believe the existing answers are deprecated due to updates to DataTables. HTML5 supports attributes that DataTables can use to easily sort columns. Specifically the data-sort attribute. (See https://datatables.net/examples/advanced_init/html5-data-attributes.html)

I can easily sort tables like so:

<table>
  <thead>
    <tr>
      <td>Name</td>
      <td>Age</td>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>John Doe</td>
      <td data-sort="37">2/1/78 (37 years old)</td>
    </tr>
    <tr>
      <td>Jane Doe</td>
      <td data-sort="35">12/1/80 (35 years old)</td>
    </tr>
  </tbody>
</table>

It doesn’t matter that the ‘Age’ column contains numbers, symbols, and letters, DataTables will sort using the ‘data-sort’ attribute.