---
title: GlobalEventHandlers.ondurationchange
slug: Web/API/GlobalEventHandlers/ondurationchange
tags:
  - API
  - Audio
  - Video
translation_of: Web/API/GlobalEventHandlers/ondurationchange
original_slug: Web/API/GlobalEventHandlers/时长改变
---
<div>{{ ApiRef("HTML DOM") }}</div>

<p>{{domxref("GlobalEventHandlers")}} 的<strong><code>ondurationchange</code></strong>属性是一个处理 {{event("durationchange")}} 事件的{{domxref("EventHandler")}} 。</p>

<p><code><strong>durationchange</strong></code>事件会在<code>duration</code>发生变更时触发。</p>

<h2 id="语法">语法</h2>

<pre class="syntaxbox"><em><var>element</var></em>.ondurationchange = <em>handlerFunction</em>;
var <em>handlerFunction</em> = <em><var>element</var></em>.ondurationchange;
</pre>

<p><code>handlerFunction</code>可以为<code>null</code>也可以是一个处理该事件的<a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions" title="/en-US/docs/JavaScript/Reference/Functions_and_function_scope">JavaScript方法</a>。</p>

<h2 id="规范说明">规范说明</h2>

<table class="spectable 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','#handler-ondurationchange','ondurationchange')}}</td>
   <td>{{Spec2('HTML WHATWG')}}</td>
   <td></td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容">浏览器兼容</h2>

<div class="hidden">该页面的兼容性表是通过格式化数据生成的，如果您想贡献数据，请check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a>修改后向我们发送pull请求。</div>

<p>{{Compat("api.GlobalEventHandlers.ondurationchange")}}</p>

<h2 id="其他">其他</h2>

<ul>
 <li>{{event("durationchange")}}</li>
 <li><a href="/en-US/docs/Web/Guide/Events/Event_handlers" title="/en-US/docs/Web/Guide/DOM/Events/Event_handlers">DOM event handlers</a></li>
</ul>