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XML DOM prefix Property

❮ Node Object

Example

The following code fragment loads "books_ns.xml" into xmlDoc and returns the namespace prefix of the <title> elements:

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).prefix + "<br>";
    }
    document.getElementById("demo").innerHTML = txt;
}

Output:

Prefix: c
Prefix: x
Try it Yourself »

Definition and Usage

The prefix property sets or returns the namespace prefix of a node.

Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The prefix property is supported in all major browsers.

Syntax

Set the namespace prefix:

nodeObject.prefix=prefix

Return the namespace prefix:

nodeObject.prefix

Technical Details

Return Value: A String representing the namespace prefix of the node, or null if the node does not have a namespace
DOM Version Core Level 2 Node Object
❮ Node Object