Home » Cloud Investing Network » How to Insert a Row in an Html Table Body in Javascript

How to Insert a Row in an Html Table Body in Javascript

Alexander Ross • • 10 min read
How to Insert a Row in an Html Table Body in Javascript

I have an HTML table with a header and a footer:

<table id="myTable">
    <thead>
        <tr>
            <th>My Header</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>aaaaa</td>
        </tr>
    </tbody>
    <tfoot>
        <tr>
            <td>My footer</td>
        </tr>
    <tfoot>
</table>

I am trying to add a row in tbody with the following:

myTable.insertRow(myTable.rows.length - 1);

but the row is added in the tfoot section.

How do I insert tbody?

1

12 Answers

If you want to add a row into the tbody, get a reference to it and call its insertRow method.

var tbodyRef = document.getElementById('myTable').getElementsByTagName('tbody')[0];

// Insert a row at the end of table
var newRow = tbodyRef.insertRow();

// Insert a cell at the end of the row
var newCell = newRow.insertCell();

// Append a text node to the cell
var newText = document.createTextNode('new row');
newCell.appendChild(newText);
<table id="myTable">
  <thead>
    <tr>
      <th>My Header</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>initial row</td>
    </tr>
  </tbody>
  <tfoot>
    <tr>
      <td>My Footer</td>
    </tr>
  </tfoot>
</table>

(old demo on JSFiddle)

8

You can try the following snippet using jQuery:

$(table).find('tbody').append("<tr><td>aaaa</td></tr>");
4

Basic approach:

This should add HTML-formatted content and show the newly added row.

var myHtmlContent = "<h3>hello</h3>"
var tableRef = document.getElementById('myTable').getElementsByTagName('tbody')[0];

var newRow = tableRef.insertRow(tableRef.rows.length);
newRow.innerHTML = myHtmlContent;
2

You're close. Just add the row to the tbody instead of table:

myTbody.insertRow();

Just get a reference to tBody (myTbody) before use. Notice that you don't need to pass the last position in a table; it's automatically positioned at the end when omitting argument.

A live demo is at jsFiddle.

I think this script is what exactly you need 

var t = document.getElementById('myTable');
var r =document.createElement('TR');
t.tBodies[0].appendChild(r)
1

Add rows:

<html>
    <script>
        function addRow() {
            var table = document.getElementById('myTable');
            //var row = document.getElementById("myTable");
            var x = table.insertRow(0);
            var e = table.rows.length-1;
            var l = table.rows[e].cells.length;
            //x.innerHTML = "&nbsp;";

            for (var c=0, m=l; c < m; c++) {
                table.rows[0].insertCell(c);
                table.rows[0].cells[c].innerHTML = "&nbsp;&nbsp;";
            }
        }

        function addColumn() {
            var table = document.getElementById('myTable');
            for (var r = 0, n = table.rows.length; r < n; r++) {
                table.rows[r].insertCell(0);
                table.rows[r].cells[0].innerHTML = "&nbsp;&nbsp;";
            }
        }

        function deleteRow() {
            document.getElementById("myTable").deleteRow(0);
        }

        function deleteColumn() {
            // var row = document.getElementById("myRow");
            var table = document.getElementById('myTable');
            for (var r = 0, n = table.rows.length; r < n; r++) {
                table.rows[r].deleteCell(0); // var table handle
            }
        }
    </script>

    <body>
        <input type="button" value="row +" onClick="addRow()" border=0 style='cursor:hand'>
        <input type="button" value="row -" onClick='deleteRow()' border=0 style='cursor:hand'>
        <input type="button" value="column +" onClick="addColumn()" border=0 style='cursor:hand'>
        <input type="button" value="column -" onClick='deleteColumn()' border=0 style='cursor:hand'>

        <table  id='myTable' border=1 cellpadding=0 cellspacing=0>
            <tr id='myRow'>
                <td>&nbsp;</td>
                <td>&nbsp;</td>
                <td>&nbsp;</td>
            </tr>
            <tr>
                <td>&nbsp;</td>
                <td>&nbsp;</td>
                <td>&nbsp;</td>
            </tr>
        </table>
    </body>
</html>

And cells.

1

Add Column, Add Row, Delete Column, Delete Row. Simplest way

    function addColumn(myTable) {
      var table = document.getElementById(myTable);
      var row = table.getElementsByTagName('tr');
      for(i=0;i<row.length;i++){
        row[i].innerHTML = row[i].innerHTML + '<td></td>';
      }
    }
    function deleterow(tblId)
    {
        
      var table = document.getElementById(tblId);
      var row = table.getElementsByTagName('tr');
            if(row.length!='1'){
                row[row.length - 1].outerHTML='';
            }
    }
    function deleteColumn(tblId)
    {
        var allRows = document.getElementById(tblId).rows;
        for (var i=0; i<allRows.length; i++) {
            if (allRows[i].cells.length > 1) {
                allRows[i].deleteCell(-1);
            }
        }
    }
    function myFunction(myTable) {
      var table = document.getElementById(myTable);
      var row = table.getElementsByTagName('tr');
      var row = row[row.length-1].outerHTML;
      table.innerHTML = table.innerHTML + row;
      var row = table.getElementsByTagName('tr');
      var row = row[row.length-1].getElementsByTagName('td');
      for(i=0;i<row.length;i++){
        row[i].innerHTML = '';
      }
    }
    table, td {
      border: 1px solid black;
      border-collapse:collapse;
    }
    td {
      cursor:text;
      padding:10px;
    }
    td:empty:after{
      content:"Type here...";
      color:#cccccc;
    }
   <!DOCTYPE html>
    <html>
    <head>
    </head>
    <body>
    <form>
    <p>
    <input type="button" value="+Column" onclick="addColumn('tblSample')">
    <input type="button" value="-Column" onclick="deleteColumn('tblSample')">
    <input type="button" value="+Row" onclick="myFunction('tblSample')">
    <input type="button" value="-Row" onclick="deleterow('tblSample')">
    </p>
    <table id="tblSample" contenteditable><tr><td></td></tr></table>
    </form>

    </body>
    </html>
let myTable = document.getElementById('myTable').getElementsByTagName('tbody')[0];

let row = myTable.insertRow();
let cell1 = row.insertCell(0);
let cell2 = row.insertCell(1);
let cell3 = row.insertCell(2);

cell1.innerHTML = 1;
cell2.innerHTML = 'JAHID';
cell3.innerHTML = 23;

row = myTable.insertRow();
cell1 = row.insertCell(0);
cell2 = row.insertCell(1);
cell3 = row.insertCell(2);

cell1.innerHTML = 2;
cell2.innerHTML = 'HOSSAIIN';
cell3.innerHTML = 50;
table {
  border-collapse: collapse;
}

td, th {
  border: 1px solid #000;
  padding: 10px;
}
<table id="myTable">
    <thead>
        <tr>
            <th>ID</th>
            <th>NAME</th>
            <th>AGE</th>
        </tr>    
     </thead>
    <tbody></tbody>
</table>

You can also use querySelector to select the tbody, then insert a new row at the end of it.

Use append to insert Node or DOMString objects to a new cell, which will then be inserted into the new row.

var myTbody = document.querySelector("#myTable>tbody");
var newRow = myTbody.insertRow();
newRow.insertCell().append("New data");
<table id="myTable">
  <thead>
    <tr>
      <th>My Header</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Data</td>
    </tr>
  </tbody>
  <tfoot>
    <tr>
      <td>My footer</td>
    </tr>
  </tfoot>
</table>

I have tried this, and this is working for me:

var table = document.getElementById("myTable");
var row = table.insertRow(myTable.rows.length-2);
var cell1 = row.insertCell(0);
3

You can use the following example:

<table id="purches">
    <thead>
        <tr>
            <th>ID</th>
            <th>Transaction Date</th>
            <th>Category</th>
            <th>Transaction Amount</th>
            <th>Offer</th>
        </tr>
    </thead>

    <!--  <tr th:each="person: ${list}"    >
            <td><li th:each="person: ${list}" th:text="|${person.description}|"></li></td>
            <td><li th:each="person: ${list}" th:text="|${person.price}|"></li></td>
            <td><li th:each="person: ${list}" th:text="|${person.available}|"></li></td>
            <td><li th:each="person: ${list}" th:text="|${person.from}|"></li></td>
            </tr>
    -->

    <tbody id="feedback">
    </tbody>
</table>

JavaScript file:

$.ajax({
    type: "POST",
    contentType: "application/json",
    url: "/search",
    data: JSON.stringify(search),
    dataType: 'json',
    cache: false,
    timeout: 600000,
    success: function (data) {
        //  var json = "<h4>Ajax Response</h4><pre>"  + JSON.stringify(data, null, 4) + "</pre>";
        // $('#feedback').html(json);
        //
        console.log("SUCCESS: ", data);
        //$("#btn-search").prop("disabled", false);

        for (var i = 0; i < data.length; i++) {
            //$("#feedback").append('<tr><td>' + data[i].accountNumber + '</td><td>' + data[i].category + '</td><td>' + data[i].ssn + '</td></tr>');
            $('#feedback').append('<tr><td>' + data[i].accountNumber + '</td><td>' + data[i].category + '</td><td>' + data[i].ssn + '</td><td>' + data[i].ssn + '</td><td>' + data[i].ssn + '</td></tr>');

            alert(data[i].accountNumber)
        }
    },
    error: function (e) {
        var json = "<h4>Ajax Response</h4><pre>" + e.responseText + "</pre>";
        $('#feedback').html(json);

        console.log("ERROR: ", e);
        $("#btn-search").prop("disabled", false);
    }
});

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <link rel="stylesheet" type="text/css" href="css/style.css" />
    <title>Expense Tracker</title>
  </head>
  <body>
    <h1>Expense Tracker</h1>

    <div id="myDiv">
      <label for="name">Name:</label>
      <input
        type="text"
        name="myInput"
        id="myInput"
        placeholder="Name of expense"
        size="50"
      /><br /><br />
      <label for="date">Date:</label>
      <input type="date" id="myDate" name="myDate" />
      <label for="amount">Amount:</label>
      <input
        type="text"
        name="myAmount"
        id="myAmount"
        placeholder="Dollar amount ($)"
      /><br /><br />
      <span onclick="addRow()" class="addBtn">Add Expense</span>
    </div>
    <br />
    <input type="button" value="Add Rows" onclick="addRows()" />
    <!-- Optional position -->
    <table id="myTable">
      <tr>
        <th>Name</th>
        <th>Date</th>
        <th>Amount</th>
        <th>Delete</th>
      </tr>
      <tr>
        <td>McDonald's</td>
        <td>6/22/2017</td>
        <td>$12.00</td>
        <td>
          <input type="button" value="Delete" onclick="deleteRow(this)" />
        </td>
      </tr>
    </table>

    <script>
      function deleteRow(r) {
        var i = r.parentNode.parentNode.rowIndex;
        document.getElementById("myTable").deleteRow(i);
      }
      function addRows() {
        console.log("add rows");
        document.getElementById("myTable").innerHTML += `<tr>
        <td>McDonald's</td>
        <td>6/22/2017</td>
        <td>$12.00</td>
        <td>
          <input type="button" value="Delete" onclick="deleteRow(this)" />
        </td>
      </tr>`;
      }
    </script>
  </body>
</html>

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Alexander Ross
Author

Alexander Ross

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.