THE WORLD'S LARGEST WEB DEVELOPER SITE
HTMLCSSJAVASCRIPTSQLPHPBOOTSTRAPJQUERYANGULARXML
 

XML DOM insertData() Method


Comment Object Reference 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 Reference Comment Object