Removes or replaces the named attribute.
oXMLDOMElement.removeAttribute(name);
var xmlDoc = new ActiveXObject("Msxml2.DOMDocument.5.0");
var nodeBook;
xmlDoc.setProperty("SelectionLanguage", "XPath");
xmlDoc.async = false;
xmlDoc.load("books.xml");
if (xmlDoc.parseError.errorCode <> 0) {
   var myErr = xmlDoc.parseError;
   alert("You have error " + myErr.reason);
} else {
   nodeBook = xmlDoc.selectSingleNode("//book");
   alert(nodeBook.attributes.length);
   nodeBook.removeAttribute("id");
   alert(nodeBook.attributes.length);
}
oXMLDOMElement.removeAttribute(name)
Dim xmlDoc As New Msxml2.DOMDocument50
Dim nodeBook As IXMLDOMElement
xmlDoc.setProperty "SelectionLanguage", "XPath"
xmlDoc.async = False
xmlDoc.Load "books.xml"
If (xmlDoc.parseError.errorCode <> 0) Then
   Dim myErr
   Set myErr = xmlDoc.parseError
   MsgBox("You have error " & myErr.reason)
Else
   Set nodeBook = xmlDoc.selectSingleNode("//book")
   MsgBox nodeBook.Attributes.length
   nodeBook.removeAttribute "id"
   MsgBox nodeBook.Attributes.length
End If
HRESULT removeAttribute(
    BSTR name);
IXMLDOMElement *pIXMLDOMElement = NULL;
_bstr_t bstrAttributeName = _T("dateCreated");
IXMLDOMDocument *pIXMLDOMDocument = NULL;
HRESULT hr;
try
{
   // Create an instance of DOMDocument and initialize pIXMLDOMDocument.
   // Load/create an XML fragment.
   hr = pIXMLDOMDocument->get_documentElement(&pIXMLDOMElement);
   SUCCEEDED(hr) ? 0 : throw hr;
   hr = pIXMLDOMElement->removeAttribute(bstrAttributeName);
   if(SUCCEEDED(hr))
   {
   // Attribute removed.
   }
   pIXMLDOMElement->Release();
   pIXMLDOMElement = NULL;
   // Release pIXMLDOMDocument when finished with it.
}
catch(...)
{
   // Release pIXMLDOMDocument if it exists.
   if(pIXMLDOMElement)
      pIXMLDOMElement->Release();
   DisplayErrorToUser();
}
If the specified attribute has a default value, this is equivalent to a replace operation: The current value is removed and a new attribute is created with the default value. This operation also resets the specified property of IXMLDOMNode.
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 in the upper-left corner of the page.
Applies to: IXMLDOMElement