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+---
+title: ServiceWorkerContainer.getRegistrations()
+slug: Web/API/ServiceWorkerContainer/getRegistrations
+tags:
+  - API
+  - Method
+  - Reference
+  - Service Workers
+  - ServiceWorker
+  - ServiceWorkerContainer
+  - getRegistrations
+translation_of: Web/API/ServiceWorkerContainer/getRegistrations
+---
+<div>{{APIRef("Service Workers API")}}</div>
+
+<p><span class="seoSummary">{{domxref("ServiceWorkerContainer")}} インターフェイスの <strong><code>getRegistrations()</code></strong> メソッドは、<code>ServiceWorkerContainer</code> に関するすべての {{domxref("ServiceWorkerRegistration")}} を配列で取得します。 このメソッドは、{{domxref("ServiceWorkerRegistration")}} の配列に解決される {{jsxref("Promise")}} を返します。</span></p>
+
+<h2 id="Syntax" name="Syntax">構文</h2>
+
+<pre class="syntaxbox"><em>serviceWorkerContainer</em>.getRegistrations().then(function(<em>serviceWorkerRegistrations</em>) { ... });</pre>
+
+<h3 id="Parameters" name="Parameters">パラメーター</h3>
+
+<p>なし。</p>
+
+<h3 id="Return_value" name="Return_value">戻り値</h3>
+
+<p>{{domxref("ServiceWorkerRegistration")}} オブジェクトの配列に解決される {{jsxref("Promise")}}。</p>
+
+<h2 id="Example" name="Example">例</h2>
+
+<pre class="brush: js">navigator.serviceWorker.getRegistrations().then(function(registrations) {
+  document.querySelector('#status').textContent = 'ServiceWorkerRegistrations が見つかりました。';
+});</pre>
+
+<h2 id="Specifications" name="Specifications">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('Service Workers', '#navigator-service-worker-getRegistrations', 'getRegistrations()')}}</td>
+   <td>{{Spec2('Service Workers')}}</td>
+   <td>初期定義</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility" name="Browser_compatibility">ブラウザーの互換性</h2>
+
+<div>
+
+
+<p>{{Compat("api.ServiceWorkerContainer.getRegistrations")}}</p>
+</div>