JavaScript/jQuery: How do I get an array of all attributes in an XML element?

Question

Given an XML element in jQuery like so:

$('<foo oy="vey" foo="bar" here="is" another="attribute" />')

Can I use either jQuery or plain old JavaScript to get an array containing the names of all the attributes in an XML element? I would expect this:

['oy','foo','here','another']

Answer 1

This plugin will help you do that.

You can also do it using plain old javascript using something like that :

 var elt = document.getElementsByTagName('id'); 
 for (i=0;i<elt.attributes.length;i++){ 
     //elt.attributes[i].nodeName is what you want, .nodeValue for it's value.
 }

Answer 2

it will be more easy if you use child elements instead of attributes. :) Then you can parse and get those values real simple.

Answer 3

The jQuery function isn't really meant to parse XML, it can parse HTML, but it's not really the same.

What about using the browser's XML parser:

function parseXML(text) {
  var parser, xmlDoc;

  if (window.DOMParser) {
    parser = new DOMParser();
    xmlDoc = parser.parseFromString(text,"text/xml");
  } else {  // IE
    xmlDoc=  new ActiveXObject("Microsoft.XMLDOM");
    xmlDoc.async = "false";
    xmlDoc.loadXML(text); 
  }
  return xmlDoc;
}

// Demo
var doc = parseXML('<foo oy="vey" foo="bar" here="is" another="attribute" />');
var foo = doc.childNodes[0];
for (var i = 0; i < foo.attributes.length; i++) {
  var attr = foo.attributes[i];
  alert(attr.name + " = " + attr.value); 
}

Run the above code here.