XML DOM lookupPrefix() method
Definition and usage
The lookupPrefix() method returns the prefix that matches the specified namespace URI at the current node.
Syntax:
elementNode.lookupPrefix(URI)
| Parameter | Description |
|---|---|
| URI | Required. The namespace prefix to be found. |
Example
In all examples, we will use the XML file books_ns.xml, and the JavaScript function loadXMLDoc().
The following code snippet finds the prefix matching the namespace URI in the first <book> element:
xmlDoc=loadXMLDoc("books_ns.xml");
x=xmlDoc.getElementsByTagName("book")[0];
document.write(x.lookupPrefix("http://www.codew3c.com/children/"));
The output of the above code is:
c
