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XML DOM deleteData() Method

< Comment Object

Example

The following code fragment loads "books_comment.xml" into xmlDoc and deletes some characters from 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].deleteData(0,33);
            txt += x[i].data + "<br>";
        }
    }
    document.getElementById("demo").innerHTML = txt;
}

Output:

(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 deleteData() method deletes data from a comment node.

Syntax

commentNode.deleteData(start,length)

Parameter	Description
start	Required. Specifies where to begin removing characters. Start value starts at zero
length	Required. Specifies how many characters to delete

< Comment Object