Can't create an XML node using Javascript

Question

I am trying to create a simple XML node with text "New node!"

var xmlDoc = loadXMLDoc("myFile.xml");
var newElem = xmlDoc.createElement("elem");
newElem.innerHTML = "New node!";

Where loadXMLDoc() is

function loadXMLDoc(dname) {
    if (window.XMLHttpRequest) {
        xhttp = new XMLHttpRequest();
    } else {
        xhttp = new ActiveXObject("Microsoft.XMLHTTP");
    }
    xhttp.open("GET", dname, false);
    xhttp.send();
    return xhttp.responseXML;
}

But the code does not work. I expect the XML file to have a new node "<elem>" with "New node!" in it, but it was still the same. I have no idea why. There were no error messages.

How do I get my code to work?

What do you mean by "the code does not work"? What are you expecting? — Christophe, Apr 15 '14 at 12:55
@chris97ong There you go http://stackoverflow.com/questions/14220321/how-to-return-the-response-from-an-ajax-call/16825593#16825593 — Benjamin Gruenbaum, Apr 15 '14 at 13:00
@BenjaminGruenbaum the OP is making a synchronous request (`false` parameter). — Christophe, Apr 15 '14 at 13:03

score 1 · Accepted Answer · edited Sep 03 '14 at 13:28

1

Your code is creating a new element, but you are not appending it to the XML.

See the example here: https://developer.mozilla.org/en-US/docs/Web/API/document.createElement#Example

edited Sep 03 '14 at 13:28

Qantas 94 Heavy

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answered Apr 15 '14 at 13:01

Christophe

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So how do I change my JS code? Sry I'm a beginner of XML. – chris97ong Apr 15 '14 at 13:01
Did you look at the example? You need to use appendChild on the node where you want `elem` inserted. – Christophe Apr 15 '14 at 13:04
My `elem` is not a child of any node – chris97ong Apr 15 '14 at 13:07
I tried: `var newElem = xmlDoc.createElement("elem"); var newElemTxt = xmlDoc.createTextNode("New node!"); newElem.appendChild(newElemTxt);` But not working – chris97ong Apr 15 '14 at 13:12
@chris97ong `elem` has to be a child of a node (root element or other). – Christophe Apr 15 '14 at 13:14

Can't create an XML node using Javascript

1 Answers1