Latest web development tutorials

×

XML Tutorial

XML HOME XML Introduction XML How to use XML Tree XML Syntax XML Elements XML Attributes XML Namespaces XML Display XML XSLT XML XPath XML XLink XML Validator XML DTD XML Schema XML Server XML Applications XML Examples XML Quiz XML Certificate

XML DOM

DOM Intro DOM Nodes DOM XMLHttpRequest DOM Accessing DOM Node Info DOM Node List DOM Traversing DOM Navigating DOM Get Values DOM Change Nodes DOM Remove Nodes DOM Replace Nodes DOM Create Nodes DOM Add Nodes DOM Clone Nodes DOM Examples

DOM Reference

DOM Node Types DOM Node DOM NodeList DOM NamedNodeMap DOM Document DOM Element DOM Attribute DOM Text DOM CDATA DOM Comment DOM XMLHttpRequest DOM Parser

XML DTD

DTD Intro DTD Building Blocks DTD Elements DTD Attributes DTD Elements vs Attr DTD Entities DTD Examples

XSD Schema

XSD Intro XSD How To XSD <schema> XSD Elements XSD Attributes XSD Restrictions

XSD Complex

XSD Elements XSD Empty XSD Elements Only XSD Text Only XSD Mixed XSD Indicators XSD <any> XSD <anyAttribute> XSD Substitution XSD Example

XSD Data

XSD String XSD Date XSD Numeric XSD Misc XSD Reference

Web Services

XML Services XML WSDL XML SOAP XML RDF XML RSS

XML DOM insertData() Method

< Comment Object

Example

The following code fragment loads "books_comment.xml" into xmlDoc and inserts a string to the first comment node:

var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (xhttp.readyState == 4 && xhttp.status == 200) {
�� myFunction(xhttp);
�� }
};
xhttp.open("GET", "books_comment.xml", true);
xhttp.send();

function myFunction(xml) {
    var x, i, xmlDoc, txt;
    xmlDoc = xml.responseXML;
    txt = "";
    x = xmlDoc.getElementsByTagName("book")[0].childNodes;
    for (i = 0; i < x.length; i++) {
    // Process only comment nodes
        if (x[i].nodeType == 8) {
            x[i].insertData(25, "Italian ");
            txt += x[i].data + "<br>";
        }
    }
    document.getElementById("demo").innerHTML = txt;
}

Output:

125 Simple and Delicious Italian Recipes (Hardcover)

Try it Yourself »

In the example above we use a loop and an if-test to make sure we only process comment nodes. A comment node has a node type of 8.

Definition and Usage

The insertData() method inserts data to a comment node.

Syntax

commentNode.insertData(start,string)

Parameter	Description
start	Required. Specifies where to begin inserting characters. Start value starts at zero
string	Required. Specifies the string to insert

< Comment Object