HTML DOM TableData colSpan Property


The HTML DOM TableData colSpan property returns and modify the value of colspan attribute of a table in an HTML document.

Syntax

Following is the syntax −

1. Returning colSpan

object.colSpan

2. Adding colSpan

object.colSpan = “number”

Let us see an example of colSpan property −

Example

 Live Demo

<!DOCTYPE html>
<html>
<style>
   body {
      color: #000;
      background: lightblue;
      height: 100vh;
      text-align: center;
   }
   table {
      margin: 2rem auto;
      width: 400px;
   }
   .btn {
      background: #db133a;
      border: none;
      height: 2rem;
      border-radius: 2px;
      width: 40%;
      display: block;
      color: #fff;
      outline: none;
      cursor: pointer;
      margin: 1rem auto;
   }
</style>
<body>
<h1>DOM TableData colSpan Property Demo</h1>
<table border="2">
<thead>
<tr>
<th>Name</th>
<th>Roll No.</th>
</tr>
<thead>
<tbody>
<tr>
<td>John</td>
<td>071717</td>
</tr>
<tr>
<td>Jane</td>
<td>031717</td>
</tr>
</tbody>
<tfoot>
<tr>
<td id="span-row">Table Footer</td>
</tr>
</tfoot>
</table>
<button onclick="get()" class="btn">Span Footer</button>
<script>
   function get() {
      document.querySelector('#span-row').colSpan = "2";
   }
</script>
</body>
</html>

Output

This will produce the following output:

Click on “Span Footer” button to span footer of the table across two columns.

Updated on: 20-Jun-2020

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