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JavaScript: The Definitive Guide, 4th Edition
By
David Flanagan
Publisher
: O'Reilly
Pub Date
: November 2001
ISBN
: 0-596-00048-0
Pages
: 936
Slots
: 1
This fourth edition of the definitive reference to
JavaScript, a scripting language that can be embedded
directly in web pages, covers the latest version of the
language, JavaScript 1.5, as supported by Netscape 6 and
Internet Explorer 6. The book also provides complete
coverage of the W3C DOM standard (Level 1 and Level 2),
while retaining material on the legacy Level 0 DOM for
backward compatibility.
Availability
DOM Level 1 Core
Synopsis
Node item(unsigned long index);Arguments
index
The position or index of the desired node.
Returns
The node at the specified position, or null if
index is less than zero or greater than or
equal to the length of the NamedNodeMap.
Description
This method returns a numbered element of a NamedNodeMap. In
JavaScript, NamedNodeMap objects behave like read-only arrays, and
you can use the node position as an array index within square
brackets instead of calling this method.
Although the NamedNodeMap interface allows you to iterate through its
nodes by position, it does not represent an ordered collection of
nodes. Any changes made to the NamedNodeMap (such as by
removeNamedItem( ) or setNamedItem(
)) may result in a complete reordering of the elements.
Thus, you must not modify a NamedNodeMap while you are iterating
through its elements.
See Also
NodeList
