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---
title: ServiceWorkerGlobalScope.registration
slug: Web/API/ServiceWorkerGlobalScope/registration
tags:
- API
- Property
- Reference
- Service Worker
- ServiceWorker
- ServiceWorkerGlobalScope
- registration
translation_of: Web/API/ServiceWorkerGlobalScope/registration
---
<p>{{SeeCompatTable}}{{APIRef("Service Workers API")}}</p>
<p>{{domxref("ServiceWorkerGlobalScope")}} インターフェースの <strong><code>registration</code></strong> 読み取り専用プロパティは、Service Worker の登録を表す {{domxref("ServiceWorkerRegistration")}} オブジェクトの参照を返します。</p>
<h2 id="Syntax" name="Syntax" style="line-height: 30px; font-size: 2.14285714285714rem;">構文</h2>
<pre class="brush: js" style="font-size: 14px;">serviceWorkerRegistration = self.registration
</pre>
<h3 id="値">値</h3>
<p>{{domxref("ServiceWorkerRegistration")}} オブジェクト。</p>
<h2 id="仕様" style="line-height: 30px; font-size: 2.14285714285714rem;">仕様</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col"><font face="Open Sans, sans-serif"><span style="font-weight: normal;">仕様</span></font></th>
<th scope="col"><font face="Open Sans, sans-serif"><span style="font-weight: normal;">ステータス</span></font></th>
<th scope="col"><font face="Open Sans, sans-serif"><span style="font-weight: normal;">コメント</span></font></th>
</tr>
<tr>
<td>{{SpecName('Service Workers', '#service-worker-global-scope-registration', 'ServiceWorkerGlobalScope.registration')}}</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>{{CompatUnknown}}</td>
</tr>
</tbody>
</table>
</div>
<p>[1] Service workers（と <a href="/ja/docs/Web/API/Push_API">Push</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。</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>{{jsxref("Promise")}}</li>
<li><a href="/ja/docs/Web/Guide/Performance/Using_web_workers">Using web workers</a></li>
</ul>
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