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---
title: Notification.badge
slug: Web/API/notification/badge
tags:
- Notification
- Notification badge
- Notifications API
- Web API
translation_of: Web/API/Notification/badge
---
<p>{{SeeCompatTable}}{{APIRef("Notifications API")}}</p>
<p>当没有足够的空间来显示通知本身时，{{domxref("Notification")}}接口的 <strong><code>badge</code></strong> 属性返回用于表示通知的图像URL。</p>
<h2 id="语法">语法</h2>
<pre class="syntaxbox">var <em>url</em> = Notification.<em>badge</em></pre>
<h3 id="值">值</h3>
<p>包含一个URL的 {{domxref('USVString')}} 。</p>
<h2 id="规范">规范</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">规范</th>
<th scope="col">状态</th>
<th scope="col">说明</th>
</tr>
<tr>
<td>{{SpecName('Web Notifications','#dom-notification-badge','badge')}}</td>
<td>{{Spec2('Web Notifications')}}</td>
<td>Initial definition.</td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
<div>{{CompatibilityTable}}</div>
<div id="compat-desktop">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Chrome</th>
<th>Firefox (Gecko)</th>
<th>Internet Explorer</th>
<th>Opera</th>
<th>Safari (WebKit)</th>
</tr>
<tr>
<td>Basic support</td>
<td>{{CompatChrome(53.0)}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatOpera(39)}}</td>
<td>{{CompatUnknown}}</td>
</tr>
</tbody>
</table>
</div>
<div id="compat-mobile">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Android</th>
<th>Android Webview</th>
<th>Firefox Mobile (Gecko)</th>
<th>Firefox OS</th>
<th>IE Mobile</th>
<th>Opera Mobile</th>
<th>Safari Mobile</th>
<th>Chrome for Android</th>
</tr>
<tr>
<td>Basic support</td>
<td>{{CompatNo}}</td>
<td>{{CompatChrome(53.0)}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatOperaMobile(39)}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatChrome(53.0)}}</td>
</tr>
</tbody>
</table>
</div>
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