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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: ServiceWorkerContainer.getRegistration()
+slug: Web/API/ServiceWorkerContainer/getRegistration
+tags:
+ - API
+ - Method
+ - Reference
+ - Service Workers
+ - ServiceWorker
+ - ServiceWorkerContainer
+translation_of: Web/API/ServiceWorkerContainer/getRegistration
+---
+<p>{{APIRef("Service Workers API")}}</p>
+
+<p><span class="seoSummary">{{domxref("ServiceWorkerContainer")}} インターフェイスの <strong><code>getRegistration()</code></strong> メソッドは、スコープ URL が指定されたドキュメント URL と一致する {{domxref("ServiceWorkerRegistration")}} オブジェクトを取得します。 このメソッドは、{{domxref("ServiceWorkerRegistration")}} または <code>undefined</code> 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>.getRegistration(<em>scope</em>).then(function(<em>serviceWorkerRegistration</em>) { ... });</pre>
+
+<h3 id="Parameters" name="Parameters">パラメーター</h3>
+
+<dl>
+ <dt><code>scope</code> {{optional_inline}}</dt>
+ <dd>サービスワーカー登録の一意の識別子 — 取得する登録オブジェクトのスコープ URL。 これは通常、相対 URL です。</dd>
+</dl>
+
+<h3 id="Return_value" name="Return_value">戻り値</h3>
+
+<p>{{domxref("ServiceWorkerRegistration")}} オブジェクトまたは <code>undefined</code> に解決される {{jsxref("Promise")}}。</p>
+
+<h2 id="Example" name="Example">例</h2>
+
+<pre class="brush: js">navigator.serviceWorker.getRegistration('/app').then(function(registration) {
+ if(registration){
+ document.querySelector('#status').textContent = 'ServiceWorkerRegistration 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', '#dom-serviceworkercontainer-getregistration', 'ServiceWorkerContainer: getRegistration')}}</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.getRegistration")}}</p>
+</div>