Element: localName property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨July 2015⁩.

TheElement.localName read-only property returns thelocal part of the qualified name of an element.

Value

A string representing the local part of the element's qualified name.

Examples

(Must be served with XML content type, such astext/xml orapplication/xhtml+xml.)

xml

<html xmlns="http://www.w3.org/1999/xhtml"      xmlns:svg="http://www.w3.org/2000/svg"><head>  <script><![CDATA[function test() {  const text = document.getElementById("text");  const circle = document.getElementById("circle");  text.value = `<svg:circle> has:localName = "${circle.localName}"namespaceURI = "${circle.namespaceURI}"`;}  ]]></script></head><body onload="test()">  <svg:svg version="1.1"    width="100px" height="100px"    viewBox="0 0 100 100">    <svg:circle cx="50" cy="50" r="30" fill="#aaaaaa"/>  </svg:svg>  <textarea rows="4" cols="55"/></body></html>

The local name of a node is that part of the node's qualified name that comes after thecolon. Qualified names are typically used in XML as part of the namespace(s) of theparticular XML documents. For example, in the qualified namecomm:partners,partners is the local name andcomm is the prefix:

xml

<comm:business type="brick_n_mortar" xmlns:comm="http://example.com/comm">  <comm:partners>    <comm:partner>Tony's Syrup Warehouse    </comm:partner>  </comm:partner></comm:business>

Note:While the property returns the case of the internal DOM storage, which is lower case, note thattagName property returns upper case for HTML elements in HTML DOMs.