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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: PushSubscription.unsubscribe()
+slug: Web/API/PushSubscription/unsubscribe
+tags:
+ - API
+ - Experimental
+ - Method
+ - Push
+ - Push API
+ - PushSubscription
+ - Reference
+ - Service Workers
+ - unsubscribe
+translation_of: Web/API/PushSubscription/unsubscribe
+---
+<p>{{SeeCompatTable}}{{APIRef("Push API")}}</p>
+
+<p>{{domxref("PushSubscription")}} インターフェースの <code>unsubscribe()</code> メソッドは、現在のサブスクリプションが成功裏に登録解除されたときに {{domxref("Boolean")}} で解決される{{domxref("Promise")}} を返します。</p>
+
+<h2 id="構文">構文</h2>
+
+<pre class="syntaxbox">​PushSubscription.unsubscribe().then(function(Boolean) { ... });</pre>
+
+<h3 id="パラメーター">パラメーター</h3>
+
+<p>なし。</p>
+
+<h3 id="戻り値">戻り値</h3>
+
+<p>現在のサブスクリプションが成功裏に登録解除されたときに {{domxref("Boolean")}} で解決される{{domxref("Promise")}}。</p>
+
+<h2 id="例">例</h2>
+
+<pre class="brush: js">navigator.serviceWorker.ready.then(function(reg) {
+ reg.pushManager.getSubscription().then(function(subscription) {
+ subscription.unsubscribe().then(function(successful) {
+ // 登録解除が成功
+ }).catch(function(e) {
+ // 登録解除が失敗
+ })
+ })
+});</pre>
+
+<h2 id="仕様">仕様</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">仕様</th>
+ <th scope="col">状態</th>
+ <th scope="col">コメント</th>
+ </tr>
+ <tr>
+ <td>{{SpecName('Push API','#widl-PushSubscription-unsubscribe-Promise-boolean','unsubscribe()')}}</td>
+ <td>{{Spec2('Push API')}}</td>
+ <td>初期定義。</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="ブラウザ実装状況">ブラウザ実装状況</h2>
+
+<div>{{CompatibilityTable}}</div>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>機能</th>
+ <th>Chrome</th>
+ <th>Firefox (Gecko)</th>
+ <th>Internet Explorer</th>
+ <th>Opera</th>
+ <th>Safari (WebKit)</th>
+ </tr>
+ <tr>
+ <td>基本サポート</td>
+ <td>{{CompatChrome(42.0)}}</td>
+ <td>{{CompatGeckoDesktop(44.0)}}<sup>[1]</sup></td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatNo}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>機能</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>基本サポート</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatGeckoMobile(48)}}<sup>[2]</sup></td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatChrome(42.0)}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<ul>
+ <li>[1] Push(と <a href="/ja/docs/Web/API/Service_Worker_API">Service Workers</a>) は、<a href="https://www.mozilla.org/ja/firefox/organizations/">Firefox 45 延長サポート版</a>(ESR)では使用できません。</li>
+ <li>[2] Firefox for Android 48 から、既定で Push を使用できます。</li>
+</ul>
+
+<h2 id="関連項目">関連項目</h2>
+
+<ul>
+ <li><a href="/ja/docs/Web/API/Push_API/Using_the_Push_API">Using the Push API</a></li>
+ <li>{{domxref("PushManager.getSubscription")}}</li>
+</ul>