JavaScript: The Definitive Guide, 6th Edition

Name

Attr — an element attribute

Synopsis

An Attr object represents an attribute of an Element node. You can obtain an Attr object through the attributes property of the Node interface or by calling the getAttributeNode() or getAttributeNodeNS() methods of the Element interface.

Since attribute values can be completely represented by strings, it is not usually necessary to use the Attr interface at all. In most cases, the easiest way to work with attributes is with the Element.getAttribute() and Element.setAttribute() methods. These methods use strings for attribute values and avoid the use of Attr objects altogether.

Properties

readonly string localName

The name of the attribute, not including any namespace prefix.

readonly string name

The name of the attribute, including the namespace prefix, if there is one.

readonly string namespaceURI

The URI that identifies the attribute’s namespace, or null if it doesn’t have one.

readonly string prefix

The namespace prefix of the attribute, or null if it doesn’t have one.

string value

The value of the attribute.