XML DOM lookupNameSpaceURI() Method

Node Object

Definition and Usage

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

Syntax

nodeObject.lookupNamespaceURI(prefix)

Parameters

Parameters Description
prefix Required. String. Specifies the prefix to be searched for.

Technical Details

DOM Version: Core Level 3 Node Object
Return value: The namespace URI associated with the specified prefix.

Example

The following code loads "books_ns.xml" into xmlDoc and searches for the namespace URI with the given "c" prefix:

var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
   if (this.readyState == 4 && this.status == 200) {
       myFunction(this);
   }
};
xhttp.open("GET", "books_ns.xml", true);
xhttp.send();
function myFunction(xml) {
    var xmlDoc = xml.responseXML;
    var x = xmlDoc.getElementsByTagName("book")[0];
    document.getElementById("demo").innerHTML =
    x.lookupNamespaceURI("c");
}

Try It Yourself

Browser Support

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
Support Support Support Support Support

All mainstream browsers support lookupNamespaceURI("c"); Method.

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

Node Object