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XML DOM lookupNamespaceURI() Method


Node Object Reference Node Object

Definition and Usage

The lookupNameSpaceURI() method returns the namespace URI associated with a given prefix.


Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The lookupNamespaceURI() method is supported in all major browsers.

Note: Internet Explorer 9 and earlier does not support this method.


Syntax

nodeObject.lookupNamespaceURI(prefix)

Parameters

Parameter Type Description
prefix String Required. Specifies the prefix to look for

Return Value

Type Description
String The namespace URI associated with the specified prefix

Technical Details

DOM Version Core Level 3 Node Object


Example

The following code fragment loads "books_ns.xml" into xmlDoc using loadXMLDoc() and finds the namespace URI for the given "c" prefix:

Example

xmlDoc = loadXMLDoc("books_ns.xml");

x = xmlDoc.getElementsByTagName("book")[0];
document.write(x.lookupNamespaceURI("c"));

Output:

http://www.w3schools.com/children/

Try it yourself »

Node Object Reference Node Object

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