getNamedItem (DOMNamedNodeMap - JavaScript)
Gets a node by name.
Defined in
DOMNamedNodeMapSyntax
Parameters | Description |
---|---|
string |
The name of the node. |
Return value | Description |
---|---|
DOMNode |
The node or null. An invalid name returns null. |
Examples
This button gets the child nodes below the schema level of a DOM whererequestScope.n
is
the location of a document in the database, and gets a named attribute
for each element.if (requestScope.n != null
&& requestScope.n < database.getDocumentCount()
&& requestScope.n >= 0) {
var dc = database.getAllDocuments();
var doc = dc.getDocumentArray()[requestScope.n];
var schema = doc.getFirstChild(); // get node below root
requestScope.y = "Child nodes of " + schema.getNodeName();
var element = schema.getFirstChild();
while(element != null) {
requestScope.y = requestScope.y +
"\n\t" + element.getNodeName();
if(element.hasAttributes()) {
var map = element.getAttributes();
var attr = map.getNamedItem("City");
if(attr != null) {
requestScope.y = requestScope.y +
"\n\t\t" + attr.getNodeName() + " = " + attr.getNodeValue();
} else {
requestScope.y = requestScope.y +
"\n\t\tCity is not set";
}
} else {
requestScope.y = requestScope.y + "\n\t\tHas no attributes";
}
element = element.getNextSibling();
}
} else {
requestScope.y = "No such document";
}
If the input XML to the DOM is as follows:
<schema0>
<element0 City="Paris" Month="Mar">foo</element0>
<element1 City="London">bar</element1>
<element2>foobar</element2>
</schema0>
The display appears as follows:
Child nodes of schema0
element0
City = Paris
element1
City = London
element2
Has no attributes