HTML | DOM Table createTHead() Method

The Table createTHead() method is used for creating an empty <thead> element and adding it to the table. It does not create a new <thead> element if a <thead> element already exists. In such a case, the createThead() method returns the existing one .
The <thead> element must have one or more then one <tr> tags inside.

Syntax

tableObject.createTHead()

Below program illustrates the Table createTHead() method :
Example: Creating a <thead> element.



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<!DOCTYPE html>
<html>
  
<head>
    <title>
      Table createTHead() Method in HTML
  </title>
    
    <style>
        table,
        td {
            border: 1px solid green;
        }
          
        h1 {
            color: green;
        }
          
        h2 {
            font-family: Impact;
        }
          
        body {
            text-align: center;
        }
    </style>
</head>
  
<body>
  
    <h1>GeeksforGeeks</h1>
    <h2>Table createTHead() Method</h2>
  
    <p>To create a header for a table,
      double-click the "Add Header" button.</p>
  
    <table id="Courses" 
           align="center">
        <tr>
            <td>Java</td>
            <td>Fork Java</td>
        </tr>
        <tr>
            <td>Python</td>
            <td>Fork Python</td>
        </tr>
        <tr>
            <td>Placements</td>
            <td>Sudo Placement</td>
        </tr>
  
    </table>
    <br>
  
    <button ondblclick="table_head()">
      Add Header
  </button>
  
    <script>
        function table_head() {
            
            
            var MyTable = 
                document.getElementById("Courses");
            
            // Create heading of table.
            var MyHeader = MyTable.createTHead();
            var MyRow = MyHeader.insertRow(0);
            var MyCell = MyRow.insertCell(0);
            MyCell.innerHTML = 
              "<strong>Available On GeeksforGeeks.</strong>";
        }
    </script>
  
</body>
  
</html>

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Output:

Before clicking the button:

After clicking the button:

Supported Browsers:

  • Apple Safari
  • Internet Explorer
  • Firefox
  • Google Chrome
  • Opera


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