XML DOM getNamedItem() Method
NamedNodeMap Object
Example
The following code fragment loads "books.xml" into xmlDoc, loops through the <book> elements and prints the values of the category attributes:
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (xhttp.readyState == 4 && xhttp.status == 200) {
myFunction(xhttp);
}
};
xhttp.open("GET", "books.xml", true);
xhttp.send();
function myFunction(xml) {
var x, i, att, xmlDoc, txt;
xmlDoc = xml.responseXML;
txt = "";
x = xmlDoc.getElementsByTagName('book');
for (i = 0; i < x.length; i++) {
att = x.item(i).attributes.getNamedItem("category");
txt += att.value + "<br>";
}
document.getElementById("demo").innerHTML = txt;
}
xhttp.onreadystatechange = function() {
if (xhttp.readyState == 4 && xhttp.status == 200) {
myFunction(xhttp);
}
};
xhttp.open("GET", "books.xml", true);
xhttp.send();
function myFunction(xml) {
var x, i, att, xmlDoc, txt;
xmlDoc = xml.responseXML;
txt = "";
x = xmlDoc.getElementsByTagName('book');
for (i = 0; i < x.length; i++) {
att = x.item(i).attributes.getNamedItem("category");
txt += att.value + "<br>";
}
document.getElementById("demo").innerHTML = txt;
}
The output of the code above will be:
cooking
children
web
web
Try it Yourself »
children
web
web
Definition and Usage
The getNamedItem() method returns the node with the specific name (from a namedNodeMap).
Browser Support
The getNamedItem() method is supported in all major browsers.
Note: Internet Explorer 8 and earlier does not support this method.
Syntax
namedNodeMap.getNamedItem(nodeName)
Parameters
| Parameter | Type | Description |
|---|---|---|
| nodeName | String | Required. The name of the node to return |
Return Value
| Type | Description |
|---|---|
| Node object | The node with the specified name, , or null if it does not identify any node in the map |
Technical Details
| DOM Version | Core Level 1 |
|---|
Try-It-Yourself Demos
getNamedItem() - Change an attribute's value
NamedNodeMap Object
