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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: BroadcastChannel.close()
+slug: Web/API/BroadcastChannel/close
+tags:
+ - API
+ - Broadcast Channel API
+ - BroadcastChannel
+ - Experimental
+ - HTML API
+ - Method
+ - Reference
+translation_of: Web/API/BroadcastChannel/close
+---
+<p>{{APIRef("BroadCastChannel API")}}</p>
+
+<p><span class="seoSummary"><strong><code>BroadcastChannel.close()</code></strong> は、基礎となるチャネルへの接続を終了し、オブジェクトをガベージコレクションできるようにします。</span> このチャンネルがもう必要ないことをブラウザーが知る他の方法はないので、これは実行するのに必要なステップです。</p>
+
+<p>{{AvailableInWorkers}}</p>
+
+<h2 id="Syntax" name="Syntax">構文</h2>
+
+<pre class="syntaxbox">var <em>str</em> = <em>channe<code>l</code></em><code>.close();</code>
+</pre>
+
+<h2 id="Example" name="Example">例</h2>
+
+<pre class="brush: js">// チャンネルに接続
+var bc = new BroadcastChannel('test_channel');
+
+// その他の操作(postMessage など)
+
+// 終了したら、チャンネルから切断します
+bc.close();
+</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('HTML WHATWG', "comms.html#dom-broadcastchannel-close", "BroadcastChannel.close()")}}</td>
+ <td>{{Spec2('HTML WHATWG')}}</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>
+
+
+
+<p>{{Compat("api.BroadcastChannel.close")}}</p>
+
+<h2 id="See_also" name="See_also">関連情報</h2>
+
+<ul>
+ <li>{{domxref("BroadcastChannel")}}: これが属するインターフェース。</li>
+</ul>