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---
title: event.defaultPrevented
slug: Web/API/Event/defaultPrevented
tags:
- API
- DOM
- Event
- Property
translation_of: Web/API/Event/defaultPrevented
---
<p>{{ APIRef("DOM") }}</p>
<h2 id="概述">概述</h2>
<p>返回一个布尔值，表明当前事件是否调用了 {{ domxref("event.preventDefault()") }}方法。</p>
<div class="note"><strong>注意:</strong>你应该使用该属性来代替以前的非标准的已经被废弃的<code>getPreventDefault()</code>方法 (查看{{ bug("691151") }}).</div>
<h2 id="语法">语法</h2>
<pre class="eval">bool = event.defaultPrevented
</pre>
<h2 id="示例">示例</h2>
<pre class="brush: js"> if (e.defaultPrevented) {
/* 事件的默认动作已被取消*/
}
</pre>
<h2 id="规范">规范</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('DOM WHATWG', '#dom-event-defaultprevented', 'Event.defaultPrevented()')}}</td>
<td>{{ Spec2('DOM WHATWG') }}</td>
<td> </td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容">浏览器兼容</h2>
<p>{{Compat("api.Event.defaultPrevented")}}</p>
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