Categories: NodeIterator

javascript NodeIterator Description

@May 8, 2008, 2:57 p.m.

NodeIterator

Firefox/Netscape/NN n/a IE n/a Chrome/Safari/DOM 2

The NodeIterator object is a "live" list of nodes that meet the criteria defined by the document.createNodeIterator( ) method. The list is a simple list of node references in source code order, but the list items do not bear any parent or descendant relationships to each other. The createNodeIterator( ) method describes the node where the list begins and which nodes (or classes of nodes) are exempt from the list by way of filtering (see the TreeWalker object for an example of this kind of filtering).

The NodeIterator object maintains a kind of pointer inside the list (so that your scripts don't have to). Methods of this object let scripts access the next or previous node in the list, while moving the pointer one position in either direction. If scripts modify the document tree after the NodeIterator is created, changes to the document tree are automatically reflected in the sequence of nodes in the NodeIterator.

Object Model Reference

NodeIteratorReference

Object-Specific Properties

expandEntityReference

filter

root

whatToShow

Object-Specific Methods

detach( )

nextNode( )

previousNode( )

Object-Specific Event Handler Properties

None.

javascript document createNodeIterator( )

javascript NodeIterator detach( )

javascript NodeIterator nextNode( ), previousNode( )

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