Revision 1058134 of Attr.localName

<div>{{APIRef("DOM")}}</div>

<p>The <code><strong>Attr.localName</strong></code> read-only property returns the local part of the qualified name of an element.</p>

<div class="note">
<p>Before DOM4 this API was defined within the {{domxref("Node")}} interface.</p>
</div>

<h2 id="Syntax" name="Syntax">Syntax</h2>

<pre class="syntaxbox">
<var>name</var> = <var>attribute</var>.localName
</pre>

<h3 id="Return_value">Return value</h3>

<p>A {{domxref("DOMString")}} representing the local part of the attribute's qualified name.</p>

<h2 id="Notes" name="Notes">Notes</h2>

<p>The local name of an attribute is the part of the attribute's qualified name that comes after the colon. Qualified names are typically used in XML as part of the namespace(s) of the particular XML documents.</p>

<div class="note">
<p><strong>Note:</strong> In {{Gecko("1.9.2")}} and earlier, the property returns the upper-cased version of the local name for HTML attributes in HTML DOMs (as opposed to XHTML attributes in XML DOMs). In later versions, in compliance with HTML5, the property returns in the case of the internal DOM storage, which is lower case for both HTML attributes in HTML DOMs and XHTML attributes in XML DOMs.</p>
</div>

<h2 id="Specifications">Specifications</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{SpecName('DOM4', '#interface-attr', 'Attr.localName')}}</td>
   <td>{{Spec2('DOM4')}}</td>
   <td>Initial definition</td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility">Browser compatibility</h2>

<p>{{CompatibilityTable}}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>46.0<sup>[1]</sup></td>
   <td>{{CompatGeckoDesktop("48.0")}}<sup>[1]</sup></td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatGeckoMobile("48.0")}}<sup>[1]</sup></td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<p>[1] This API was previously availabe on the {{domxref("Node")}} API.</p>

<h2 id="See_also" name="See_also">See also</h2>

<ul>
 <li>{{domxref("Element.localName")}}</li>
 <li>{{domxref("Node.localName")}}</li>
</ul>