HTML DOMException code property

Last Updated : 06 Jul, 2022

The code property of the DOMException interface returns a short number that contains the error code of the exception error, or 0 if none match. This is a read-only property.

Syntax:

var codeNumber = domException.code;

Note: This property has been DEPRECATED and is no longer recommended.

Return Value: This property returns a short number.

Example: In this example, we will create an INVALID_CHARACTER_ERR and then show its code.

html

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>DOMException code example</title>
</head>
<body>
  <h1>GeeksforGeeks</h1>
  <p>Click below to get the exception code</p>
  <button onclick="get()">Click</button>
  <p class="p">Error Code is : </p>
</body>
<script>
    function get(){
        try {
                // INVALID_CHARACTER_ERR
            var elem = document.createAttribute ("123");
        }
        catch (e) {
            console.log("Error is :", e);
            console.log("Errorcode is :", e.code);
            document.querySelector(
      ".p").textContent+=e.code;
        }   
        } 
</script>
</html>