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JavaScript: The Definitive Guide, Fourth Edition
book

JavaScript: The Definitive Guide, Fourth Edition

by David Flanagan
November 2001
Intermediate to advanced content levelIntermediate to advanced
936 pages
68h 43m
English
O'Reilly Media, Inc.
Content preview from JavaScript: The Definitive Guide, Fourth Edition

Name

Attr — an attribute of a document element

Availability

DOM Level 1 Core

Inherits from/Overrides

Node Attr

Properties

readonly String name

The name of the attribute.

readonly Element ownerElement [DOM Level 2]

The Element object that contains this attribute, or null if the Attr object is not currently associated with any Element.

readonly boolean specified

true if the attribute was explicitly specified in the document source or set by a script. false if the attribute was not explicitly specified but a default value is specified in the document’s DTD.

String value

The value of the attribute. When reading this property, the attribute value is returned as a string. When you set this property to a string, it automatically creates a Text node that contains the same text and makes that Text node the sole child of the Attr object.

Description

An Attr object represents an attribute of an Element node. Attr objects are associated with Element nodes but are not directly part of the document tree (and have a null parentNode property). You can obtain an Attr object through the attributes property of the Node interface or by calling the getAttributeNode( ) method of the Element interface.

Attr objects are nodes, and the value of an Attr is represented by the child nodes of the Attr node. In HTML documents, this is simply a single Text node. In XML documents, however, Attr nodes may have both Text and EntityReference children. The value property provides a shortcut for reading and ...

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Publisher Resources

ISBN: 0596000480Supplemental ContentCatalog PageErrata