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+---
+title: AsyncFunction.prototype
+slug: Web/JavaScript/Reference/Global_Objects/AsyncFunction/prototype
+tags:
+  - Experimental
+  - JavaScript
+  - Property
+  - Prototype
+  - Reference
+translation_of: Web/JavaScript/Reference/Global_Objects/AsyncFunction/prototype
+---
+<div>{{JSRef}}</div>
+
+<p><code><strong>AsyncFunction.prototype</strong></code> プロパティは、{{jsxref("AsyncFunction")}} プロトタイプオブジェクトを表します。</p>
+
+<h2 id="説明">説明</h2>
+
+<p>{{jsxref("AsyncFunction")}} オブジェクトは、<code>AsyncFunction.prototype</code> を継承します。<code>AsyncFunction.prototype</code> は修正できません。</p>
+
+<h2 id="プロパティ">プロパティ</h2>
+
+<dl>
+ <dt><code><strong>AsyncFunction.constructor</strong></code></dt>
+ <dd>初期値は {{jsxref("AsyncFunction")}}。</dd>
+ <dt><code><strong>AsyncFunction.prototype[@@toStringTag]</strong></code></dt>
+ <dd>"AsyncFunction" を返す。</dd>
+</dl>
+
+<h2 id="仕様">仕様</h2>
+
+<table class="standard-table">
+ <thead>
+  <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>
+ </thead>
+ <tbody>
+  <tr>
+   <td>{{SpecName('Async Function', '#async-function-definitions', 'async function')}}</td>
+   <td>{{Spec2('Async Function')}}</td>
+   <td>提案</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> Edge</th>
+   <th>Opera</th>
+   <th>Safari (WebKit)</th>
+  </tr>
+  <tr>
+   <td>基本サポート</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatGeckoDesktop("52.0")}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</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>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>{{CompatUnknown}}</td>
+   <td>{{CompatGeckoMobile("52.0")}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="関連項目">関連項目</h2>
+
+<ul>
+ <li>{{jsxref("AsyncFunction")}}</li>
+ <li>{{jsxref("Function")}}</li>
+</ul>