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XML DOM setAttributeNS() Method

Definition and Usage

The setAttributeNS() method adds a new attribute (with a namespace).

If an attribute with the specified name or namespace already exists on the element, its value is changed to the value of the prefix and value parameters.

Syntax

Parameter Description
ns Required. Specifies the namespace URI of the attribute to be set.
name Required. Specifies the name of the attribute to be set.
value Required. Specifies the value of the attribute to be set.

Example 1

The following code snippet uses loadXMLDoc() to load "books_ns.xml" into xmlDoc and adds an "edition" attribute to the first <book> element:

xmlDoc = loadXMLDoc("books_ns.xml");

x = xmlDoc.getElementsByTagName("book")[0];
ns = "http://www.tutorialpro.org/w3cnote/";

x.setAttributeNS(ns, "edition", "first");

document.write(x.getAttributeNS(ns, "edition"));

Output:

first

Example 2

The following code snippet uses loadXMLDoc() to load "books_ns.xml" into xmlDoc and changes the "lang" value of the first <title> element:

xmlDoc = loadXMLDoc("books_ns.xml");

x = xmlDoc.getElementsByTagName("title")[0];
ns = "http://www.tutorialpro.org/w3cnote/";

x.setAttributeNS(ns, "c:lang", "italian");

document.write(x.getAttributeNS(ns, "lang"));

Output:

italian
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