files/zh-cn/web/api/urlutils/hash/index.html


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---
title: HTMLHyperlinkElementUtils.hash
slug: Web/API/URLUtils/hash
tags:
  - HTMLHyperlinkElementUtils.hash
translation_of: Web/API/HTMLHyperlinkElementUtils/hash
---
<p>{{ APIRef("URLUtils") }}</p>

<p><strong><code>HTMLHyperlinkElementUtils.hash</code></strong> 属性返回一个包含“＃”的 {{domxref("DOMString")}} , 后跟URL的片段标识符。</p>

<p>片段没有<a href="https://wiki.developer.mozilla.org/zh-CN/docs/Glossary/percent-encoding">百分比解码</a>。如果URL没有包含片段标识符，这个属性为一个空的字符串, <code>""</code>.</p>

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

<pre class="syntaxbox"><em>string</em> = <em>object</em>.hash;
<em>object</em>.hash = <em>string</em>;
</pre>

<h2 id="Examples">Examples</h2>

<pre class="brush: js">// Let's an &lt;a id="myAnchor" href="https://developer.mozilla.org/en-US/docs/HTMLHyperlinkElementUtils.href#youhou"&gt; element be in the document
var anchor = document.getElementById("myAnchor");
var result = anchor.hash; // Returns:'#youhou'</pre>

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

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
  <tr>
   <td>{{SpecName('HTML WHATWG', '#dom-hyperlink-hash', 'HTMLHyperlinkElementUtils.hash')}}</td>
   <td>{{Spec2('HTML WHATWG')}}</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>Edge</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatVersionUnknown}} [1]</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoDesktop("22")}}<sup>[3]</sup></td>
   <td>{{CompatNo}}<sup>[2]</sup></td>
   <td>{{CompatNo}}<sup>[2]</sup></td>
   <td>{{CompatNo}}<sup>[2]</sup></td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android Webview</th>
   <th>Chrome for Android</th>
   <th>Edge</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>{{CompatVersionUnknown}} [1]</td>
   <td>{{CompatVersionUnknown}} [1]</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoMobile("22")}}<sup>[3]</sup></td>
   <td>{{CompatNo}}<sup>[2]</sup></td>
   <td>{{CompatNo}}<sup>[2]</sup></td>
   <td>{{CompatNo}}<sup>[2]</sup></td>
  </tr>
 </tbody>
</table>
</div>

<p>[1] Starting in Chrome 52, this property was moved to {{domxref('URL')}}</p>

<p>[2] Though not grouped in a single abstract interface, this method is directly available on the interfaces that implement it, if this interface is supported.</p>

<p>[3] From Gecko 22 to Gecko 44, this property was on the <code>URLUtils</code> mixin. It has been moves either on the <code>HTMLHyperlinkElementUtils</code> mixin, or directly on the interface. Also, from Gecko 29 to Gecko 40, the returned value was incorrectly percent-decoded.</p>

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

<ul>
 <li>The {{domxref("HTMLHyperlinkElementUtils")}} interface it belongs to.</li>
</ul>