发送特定数据到ajax

i want to post a variable data to ajax post this is my html code

<tr>
                <td class="text-right">Payment ID:</td>
                <td>variable</td> // variable that i want to post
              </tr>

and this is my java script code

var ajax_call = function() {
      $.ajax({
                    type:"post",
                    url:"request-handler.php",
                    data:{
                    
                    data:"Payment ID"
                    
                    }
                });


};

var interval = 5000; // where X is your every X minutes

setInterval(ajax_call, interval);

now i want to post the variable that between td tags in the ajaxpost

</div>

<tr id="rowID">
  <td class="text-right">Payment ID:</td>
  <td>variable</td> // variable that i want to post
</tr>

and in your javascript

var ajax_call = function() {
      $.ajax({
           type:"post",
           url:"request-handler.php",
           data:{
                    var Row = document.getElementById("rowID");
var Cells = Row.getElementsByTagName("td");
                    data:Cells[1].innerText

                    }
                });


};

EDIT: You can directly use var cells = document.getElementsByTagName("td"); as well. OR set and id to cell <tr > <td class="text-right">Payment ID:</td> <td id="columnID">variable</td> // variable that i want to post </tr>

data:{document.getElementById("columnID")}

Set an id on that cell so your js is easily readable, then just use jQuery to access the text.

var ajax_call = function() {
  $.ajax({
    type: "post",
    url: "request-handler.php",
    data: {
      paymentId: $('#payment-id').text();
      // access this on the php server using: $_POST['paymentId'];
    }
  });
};

var interval = 5000; // where X is your every X minutes

setInterval(ajax_call, interval);

<tr>
  <td class="text-right">Payment ID:</td>
  <td id="payment-id">variable</td>
  <!-- variable that i want to post -->
</tr>

</div>