From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001
From: Peter Bengtsson <mail@peterbe.com>
Date: Tue, 8 Dec 2020 14:40:17 -0500
Subject: initial commit

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+---
+title: 'Window: error event'
+slug: Web/API/Window/error_event
+translation_of: Web/API/Window/error_event
+---
+<div>{{APIRef}}</div>
+
+<p>当资源加载失败或无法使用时，会在{{domxref("Window")}}对象触发<code>error</code>事件。例如：script 执行时报错。</p>
+
+<table class="properties">
+ <tbody>
+  <tr>
+   <th scope="row">Bubbles（支持冒泡）</th>
+   <td>No</td>
+  </tr>
+  <tr>
+   <th scope="row">Cancelable（可撤销）</th>
+   <td>No</td>
+  </tr>
+  <tr>
+   <th scope="row">Interface（接口）</th>
+   <td>{{domxref("Event")}} or {{domxref("UIEvent")}}</td>
+  </tr>
+  <tr>
+   <th scope="row">Event handler property（事件处理程序属性）</th>
+   <td><code><a href="/en-US/docs/Web/API/GlobalEventHandlers/onerror">onerror</a></code></td>
+  </tr>
+ </tbody>
+</table>
+
+<p>如果它是由用户界面元素生成的，或者是由事件实例生成的，那么此事件是{{domxref("UIEvent")}}实例。</p>
+
+<h2 id="示例">示例</h2>
+
+<h3 id="在线示例"><a href="https://developer.mozilla.org/zh-CN/docs/Web/API/Window/blur_event#%E5%9C%A8%E7%BA%BF%E7%A4%BA%E4%BE%8B">在线示例</a></h3>
+
+<h4 id="HTML">HTML</h4>
+
+<pre class="brush: html">&lt;div class="controls"&gt;
+  &lt;button id="script-error" type="button"&gt;Generate script error&lt;/button&gt;
+  &lt;img class="bad-img" /&gt;
+&lt;/div&gt;
+
+&lt;div class="event-log"&gt;
+  &lt;label&gt;Event log:&lt;/label&gt;
+  &lt;textarea readonly class="event-log-contents" rows="8" cols="30"&gt;&lt;/textarea&gt;
+&lt;/div&gt;</pre>
+
+<div class="hidden">
+<h4 id="CSS">CSS</h4>
+
+<pre class="brush: css">body {
+  display: grid;
+  grid-template-areas: "control  log";
+}
+
+.controls {
+  grid-area: control;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.event-log {
+  grid-area: log;
+}
+
+.event-log-contents {
+  resize: none;
+}
+
+label, button {
+  display: block;
+}
+
+button {
+  height: 2rem;
+  margin: .5rem;
+}
+
+img {
+  width: 0;
+  height: 0;
+}
+</pre>
+</div>
+
+<h4 id="JS">JS</h4>
+
+<pre class="brush: js">const log = document.querySelector('.event-log-contents');
+
+window.addEventListener('error', (event) =&gt; {
+    log.textContent = log.textContent + `${event.type}: ${event.message}\n`;
+    console.log(event)
+});
+
+const scriptError = document.querySelector('#script-error');
+scriptError.addEventListener('click', () =&gt; {
+    const badCode = 'const s;';
+    eval(badCode);
+});
+</pre>
+
+<h4 id="结果">结果</h4>
+
+<p>{{ EmbedLiveSample('Live_example', '100%', '150px') }}</p>
+
+<h2 id="规范">规范</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">Specification</th>
+   <th scope="col">Status</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('UI Events', '#event-type-error')}}</td>
+   <td>{{Spec2('UI Events')}}</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+
+
+<p>{{Compat("api.Window.error_event")}}</p>
+
+<h2 id="相关事件">相关事件</h2>
+
+<ul>
+ <li>This event on <code>Element</code> targets: <code><a href="/en-US/docs/Web/API/Element/error_event">error</a></code> event </li>
+</ul>
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