XML DOM childNodes Property
Element Object
Example 1
The following code fragment loads "books.xml" into xmlDoc and gets the text node from the first <title> element in "books.xml":
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 xmlDoc = xml.responseXML;
var x =
xmlDoc.getElementsByTagName("title")[0];
var y =
x.childNodes[0];
document.getElementById("demo").innerHTML
=
y.nodeValue;
}
The output of the code above will be:
Everyday Italian
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Definition and Usage
The childNodes property returns a NodeList containing the child nodes of the selected node
If the selected node has no children, this property returns a NodeList containing no nodes.
Syntax
elementNode.childNodes
Tips and Notes
Tip: To loop through a childNodes list, it is more efficient to use the nextSibling property than to explicitly use the childNodes list of the parent object.
Example
The following code fragment loads "books.xml" into xmlDoc and gets the number of child nodes from the first <book> element in "books.xml":
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 xmlDoc = xml.responseXML;
var x =
xmlDoc.getElementsByTagName("book")[0].childNodes;
document.getElementById("demo").innerHTML =
x.length;
}
The output of the code above will be:
9
In IE9 and earlier, the output of the code above will be:
4
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Firefox, and most other browsers, will treat empty white-spaces or new lines as text nodes, Internet Explorer will not. So, in the example above, the output will be different.
To read more about the differences between browsers, visit our DOM Browsers chapter in our XML DOM Tutorial.
Element Object
