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The DOMNode object represents a node in an XML document.
Instance Properties
| nodeName |
A string denoting the name of the node. Read only. |
| nodeValue |
A string denoting the value of the node, if
applicable. Attribute nodes will return values for both nodeName and
nodeValue, since an attribute node consists of a name/value pair. This property is NULL except for the following nodes:
DOMAttribute,
DOMCharacterData,
DOMComment,
DOMProcessingInstruction,
DOMText
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| nodeType |
A number denoting the type of node. Read only.
1 ELEMENT_NODE
2 ATTRIBUTE_NODE
3 TEXT_NODE
4 CDATA_SECTION_NODE
5 ENTITY_REFERENCE_NODE
6 ENTITY_NODE
7 PROCESSING_INSTRUCTION_NODE
8 COMMENT_NODE
9 DOCUMENT_NODE
10 DOCUMENT_TYPE_NODE
11 DOCUMENT_FRAGMENT_NODE
12 NOTATION_NODE
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| parentNode |
The DOMNode object representing the parent of this node, or null if there is no parent. These node objects are parentless: DOMDocument , DOMDocumentFragment , DOMAttribute, DOMEntity, DOMDocumentType, and DOMNotation. |
| firstChild |
The DOMNode object representing the first child of this node, or null if there are no children. |
| lastChild |
The DOMNode object representing the last child of this node, or null if there are no children. |
| previousSibling |
The DOMNode object representing the node immediately preceding this node, or null if no nodes precede this node. |
| nextSibling |
The DOMNode object representing the node immediately following this node, or null if this is the last node. |
| attributes |
A DOMNamedNodeMap containing the attributes of this node. This property is applicable only to nodes that are elements. |
| ownerDocument |
The DOMDocument object associated with this node. For DOMDocument objects, this property is null. |
| namespaceURI |
The namespace URI of this node, or null if it is unspecified.
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Instance Methods
| insertBefore |
Inserts a DOMNode object before a specified node.
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| replaceChild |
Replaces a specified child DOMNode object with another specified DOMNode object. |
| removeChild |
Removes a node from the list of children. |
| appendChild |
Adds a specified DOMNode object to the end of the list of children of the calling node. |
| hasChildNodes |
Indicates whether a node has any children. |
| cloneNode |
Returns a duplicate of the calling DOMNode object. |
| normalize |
Puts all Text nodes at the full depth of the sub-tree underneath this node, including attribute nodes, into a "normal" form where only structure (e.g., elements, comments, processing instructions, CDATA sections, and entity references) separates Text nodes, i.e., there are neither adjacent Text nodes nor empty Text nodes. |
| isSupported |
Tests whether the DOM implementation implements a specific feature and whether that feature is supported by the calling node. |
| hasAttributes |
Returns whether the calling node (if it is an element) has any attributes. | |
Examples
The following example demostrates the instance properties of the DOMNode object. It also shows how DOMDoc objects inherit the properties and methods of the DOMNode objet.
var str = '<table border="1" cellspacing="o" cellpadding="0"
colspan="2"><tr><td>cell1</td><td>cell2</td></tr>
<tr><td>cell3</td><td>cell4</td></tr></table>';
//doc is a DOMDoc object representing a table with four cells
var doc = new DOMDocument(str);
response.write("doc.documentElement: ",
doc.documentElement, "<br>");
response.write("doc.documentElement.nodeName: ",
doc.documentElement.nodeName, "<br>");
response.write("doc.documentElement.childNodes
.item(0).nodeName: ",
doc.documentElement.childNodes
.item(0).nodeName, "<br>");
//rewrites the text in the first cell
doc.documentElement.firstChild.firstChild.firstChild.nodeValue = "hello";
response.write("doc.documentElement: ", doc.documentElement);
Output:
doc.documentElement:
doc.documentElement.nodeName: table
doc.documentElement.childNodes.item(0).nodeName: tr
doc.documentElement:
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