error while traversing xml in javascript

Question

i am using below code to traverse xml in javascript i am able to get value using x[i].childNodes[0].text; function in IE but not in firefox. please tell me what should i use so that it work with all.

  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;
}
function loadxml() {
    var xmlDoc = loadXMLDoc("xmldata/wfc20100915.xml");


    // documentElement always represents the root node
    x = xmlDoc.documentElement.childNodes;
    var arr = new Array();
    var str = "";
    for (i = 0; i < x.length; i++) {
        if (x[i].childNodes.length > 3) {
            arr[i] = new Array(5);
            arr[i][0] = x[i].childNodes[0].text;
            arr[i][1] = x[i].childNodes[1].text;
            arr[i][2] = x[i].childNodes[2].text;
            arr[i][3] = x[i].childNodes[3].text;
            arr[i][4] = x[i].childNodes[4].text;

pepkin88 · Accepted Answer · 2010-09-22 01:14:18Z

1

Modern browsers (Opera, Chrome, Firefox, Safari) and Internet Explorer interpret child nodes in different ways. In code:

<div id="first">
    <div>bla</div>
</div>

( http://jsfiddle.net/2Ra3B/ )

Internet Explorer will see only 1 child node of "first". Modern browsers will see 3 child nodes: 1 element node (div) and 2 text nodes before and after element node (white spaces). Check nodeType == 3 if you want only text nodes.

Moreover, maybe you should use data or nodeValue instead of text (I don't know if text even works, in "classic" browser DOM it doesn't work, but I didn't check it with responseXML).

You should also consider using JSON if you want use transfered data only in JavaScript.

PS. You made mistake in code: checking if childNodes.length > 3 instead of > 4 or better looking >= 5.

answered Sep 22, 2010 at 1:14

pepkin88

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