XML DOM prefix Property
❮ Attr Object
Example
The following code fragment loads "books.xml" into xmlDoc and returns the namespace prefix of the "lang" attributes:
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
   if (this.readyState == 4 && this.status == 200) {
       myFunction(this);
   }
};
xhttp.open("GET", 
"books_ns.xml", true);
xhttp.send();
function myFunction(xml) {
    
var x, i, xmlDoc, txt;
    xmlDoc = xml.responseXML;
    txt = "";
    x = 
xmlDoc.getElementsByTagName("title");
    for (i = 0; i < 
x.length; i++) { 
        txt += "Prefix: " + x.item(i).attributes[0].prefix + "<br>";
    }
    
document.getElementById("demo").innerHTML = txt; 
}
The output of the code above will be:
Prefix: xmlns
Prefix: xmlns
Try it Yourself »
Definition and Usage
The prefix property sets or returns the namespace prefix of an attribute.
Syntax
attrObject.prefix
❮ Attr Object
 
