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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
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+---
+title: Permissions
+slug: Web/API/Permissions
+translation_of: Web/API/Permissions
+---
+<p>{{APIRef("Permissions API")}}{{SeeCompatTable}}</p>
+
+<p><a href="Permissions_API">Permissions API</a>的Permissions接口提供核心PermissionAPI功能,例如查询和撤消权限的方法。</p>
+
+<h2 id="方法">方法</h2>
+
+<dl>
+ <dt>{{domxref("Permissions.query","Permissions.query()")}}</dt>
+ <dd>返回给定API的用户权限状态。</dd>
+ <dt>{{domxref("Permissions.request","Permissions.request()")}}</dt>
+ <dd>
+ <p>请求使用给定API的权限,<span style="font-size: 1rem; letter-spacing: -0.00278rem;">目前此功能尚未在任何浏览器中被支持。</span></p>
+ </dd>
+ <dt>{{domxref("Permissions.requestAll","Permissions.requestAll()")}}</dt>
+ <dd>请求使用一组给定API的权限。目前此功能<span style="font-size: 1rem; letter-spacing: -0.00278rem;">尚</span>未在任何浏览器中被支持。</dd>
+ <dt>{{domxref("Permissions.revoke","Permissions.revoke()")}}</dt>
+ <dd>返回撤消当前在给定API上设置的权限。</dd>
+</dl>
+
+<h2 id="Example">Example</h2>
+
+<pre class="brush: js">navigator.permissions.query({name:'geolocation'}).then(function(result) {
+ if (result.state === 'granted') {
+ showLocalNewsWithGeolocation();
+ } else if (result.state === 'prompt') {
+ showButtonToEnableLocalNews();
+ }
+ // 如果没有此权限则不什么也做
+});</pre>
+
+<h2 id="Specification">Specification</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">Specification</th>
+ <th scope="col">Status</th>
+ <th scope="col">Comment</th>
+ </tr>
+ <tr>
+ <td>{{SpecName("Permissions API","#permissions-interface", "Permissions")}}</td>
+ <td>{{Spec2("Permissions API")}}</td>
+ <td>Initial definition.</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_Support">Browser Support</h2>
+
+<div>
+
+
+<p>{{Compat("api.Permissions")}}</p>
+</div>