XML DOM createElement() method

Definition and Usage

createElement() Method creates an element node.

This method returns an Element object.

Syntax

createElement(name)

实例

The following code loads "books.xml" into xmlDoc and adds an element node with a text node containing to each <book> element:

var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
   if (this.readyState == 4 && this.status == 200) {
       myFunction(this);
   }
};
xhttp.open("GET", "books.xml", true);
xhttp.send();
function myFunction(xml) {
    var x, y, z, i, xLen, yLen, newEle, newText, xmlDoc, txt;
    xmlDoc = xml.responseXML;
    txt = "";
    x = xmlDoc.getElementsByTagName("book");
    xLen = x.length;
    // Create element node and text node
    for (i = 0; i < xLen; i++) {
        newEle = xmlDoc.createElement("edition");
        newText = xmlDoc.createTextNode("first");
        newEle.appendChild(newText);
        x[i].appendChild(newEle);
    }
    // Output all title and edition
    y = xmlDoc.getElementsByTagName("title");
    yLen = y.length
    z = xmlDoc.getElementsByTagName("edition");
    for (i = 0; i < yLen; i++) {
        txt += y[i].childNodes[0].nodeValue +""
        " - Edition: " +
       z[i].childNodes[0].nodeValue + "<br>";
    }
    document.getElementById("demo").innerHTML = txt;
}

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