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+---
+title: AbortSignal.onabort
+slug: Web/API/AbortSignal/abort_event
+tags:
+ - API
+ - Fetch
+ - onabort
+ - 事件处理
+ - 属性
+ - 测试
+ - 终止属性
+translation_of: Web/API/AbortSignal/onabort
+original_slug: Web/API/AbortSignal/onabort
+---
+<div>{{APIRef("DOM")}}{{SeeCompatTable}}</div>
+
+<div>当事件被{{event("abort_(cancellable_fetch)", "终止")}},{{domxref("FetchSignal")}}接口的<strong><code>onabort</code></strong> 只读属性就会被调用。例子.当fetch的请求信号被终止。</div>
+
+<h2 id="语法">语法</h2>
+
+<pre class="brush: js">abortSignal.onabort = function() { ... };</pre>
+
+<h2 id="示例">示例</h2>
+
+<p>在下面例子中, 我们将创建一个新的 <code>AbortController</code> 对象,并获取它的{{domxref("AbortSignal")}} (在 <code>signal</code> 属性中可用)。然后我们查看 <code>onabort</code> 属性是否被终止,并将相应的日志输出到控制台。</p>
+
+<pre class="brush: js">var controller = new AbortController();
+var signal = controller.signal;
+
+signal.onabort = function() {
+ console.log('Request aborted');
+};
+</pre>
+
+<h2 id="规格">规格</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">规格</th>
+ <th scope="col">状态</th>
+ <th scope="col">标注</th>
+ </tr>
+ <tr>
+ <td>{{SpecName('DOM WHATWG', '#dom-abortsignal-aborted', 'onabort')}}</td>
+ <td>{{Spec2('DOM WHATWG')}}</td>
+ <td>初始定义</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+
+
+<p>{{Compat("api.AbortSignal.onabort")}}</p>
+
+<h2 id="参考文档">参考文档</h2>
+
+<ul>
+ <li><a href="/en-US/docs/Web/API/Fetch_API">Fetch API</a></li>
+</ul>