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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: ServiceWorkerGlobalScope.skipWaiting()
+slug: Web/API/ServiceWorkerGlobalScope/skipWaiting
+tags:
+ - API
+ - Method
+ - Reference
+ - ServiceWorker
+ - skipWaiting
+translation_of: Web/API/ServiceWorkerGlobalScope/skipWaiting
+---
+<div>{{SeeCompatTable}}{{APIRef("Service Workers API")}}</div>
+
+<p>{{domxref("ServiceWorkerGlobalScope")}} スコープの <strong><code>ServiceWorkerGlobalScope.skipWaiting()</code></strong> メソッドは、待機している Service Worker がアクティブになるように強制します。</p>
+
+<p>このメソッドは、{{domxref("Clients.claim()")}} と併用することで、現在のクライアントと他のすべてのアクティブなクライアントの両方で、元となる Service Worker の更新が即座に有効になるようにします。</p>
+
+<h2 id="構文">構文</h2>
+
+<pre class="brush: js">ServiceWorkerGlobalScope.skipWaiting().then(function() {
+  //Do something
+});</pre>
+
+<h3 id="戻り値">戻り値</h3>
+
+<p>{{jsxref("Promise")}}。</p>
+
+<h2 id="例">例</h2>
+
+<p>次の例では、登録済みの Service Worker の新しいバージョンでインストールされている既存のものを置き換え、開いているページ上で現在アクティブな worker を入れ替えています。</p>
+
+<pre class="brush: js">self.addEventListener('install', function(event) {
+ event.waitUntil(self.skipWaiting());
+});
+self.addEventListener('activate', function(event) {
+  event.waitUntil(self.clients.claim());
+});
+</pre>
+
+<h2 id="仕様">仕様</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">仕様</th>
+ <th scope="col">ステータス</th>
+ <th scope="col">コメント</th>
+ </tr>
+ <tr>
+ <td>{{SpecName('Service Workers', '#service-worker-obj', 'ServiceWorker')}}</td>
+ <td>{{Spec2('Service Workers')}}</td>
+ <td>初期定義。</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="ブラウザー実装状況">ブラウザー実装状況</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>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>{{CompatUnknown}}</td>
+ <td>{{ CompatGeckoMobile("44.0") }}</td>
+ <td>{{ CompatVersionUnknown }}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatNo}}</td>
+ <td>{{CompatChrome(42.0)}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<p>[1] Service worker(と <a href="/ja/docs/Web/API/Push_API">Push</a>)は、<a href="https://www.mozilla.org/en-US/firefox/organizations/">Firefox 45 延長サポート版</a>(ESR)では使用できません。</p>
+
+<h2 id="関連項目">関連項目</h2>
+
+<ul>
+ <li><a href="/ja/docs/Web/API/ServiceWorker_API/Using_Service_Workers">Using Service Workers</a></li>
+ <li><a href="https://github.com/mdn/sw-test">Service workers basic code example</a></li>
+ <li><a href="https://jakearchibald.github.io/isserviceworkerready/">Is ServiceWorker ready?</a></li>
+ <li>{{domxref("Clients.claim()")}}</li>
+ <li>{{jsxref("Promise", "Promises")}}</li>
+ <li><a href="/ja/docs/Web/Guide/Performance/Using_web_workers">Using web workers</a></li>
+</ul>