From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001
From: Peter Bengtsson <mail@peterbe.com>
Date: Tue, 8 Dec 2020 14:40:17 -0500
Subject: initial commit

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+---
+title: Node.ownerDocument
+slug: Web/API/Node/ownerDocument
+tags:
+  - DOM
+  - Gecko
+  - Node
+translation_of: Web/API/Node/ownerDocument
+---
+<div>{{ApiRef}}</div>
+
+<h2 id="Summary" name="Summary">概要</h2>
+
+<p><code>ownerDocument</code> プロパティは、指定ノードを内包するノードツリーのトップレベルのドキュメントオブジェクトを返します。</p>
+
+<h2 id="Syntax" name="Syntax">構文</h2>
+
+<pre class="syntaxbox"><var>document</var> = element.ownerDocument
+</pre>
+
+<ul>
+ <li><code>document</code> : 指定要素の祖先である {{domxref("document")}} オブジェクト</li>
+</ul>
+
+<h2 id="Example" name="Example">例</h2>
+
+<pre class="brush:js">var doc = p.ownerDocument; // ノード p のノードツリー上のトップレベル document オブジェクトを取得
+var html = doc.documentElement; // owner のドキュメント要素を取得
+
+alert(html); // [object HTMLHtmlElement]
+</pre>
+
+<h2 id="Notes" name="Notes">注記</h2>
+
+<p>このプロパティによって返される <code>document</code> オブジェクトは、実際の HTML 文書中ですべての子ノードの属するメインオブジェクトです。<code>document</code> ノード自身に対しこのプロパティを用いた場合、戻り値は <code>null</code> となります。</p>
+
+<h2 id="Browser_compatibility" name="Browser_compatibility">仕様</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th>Specification</th>
+   <th>Status</th>
+   <th>Comment</th>
+  </tr>
+  <tr>
+   <td>{{SpecName("DOM4", "#dom-node-ownerdocument", "Node.ownerDocument")}}</td>
+   <td>{{Spec2("DOM4")}}</td>
+   <td> </td>
+  </tr>
+  <tr>
+   <td>{{SpecName("DOM3 Core", "core.html#node-ownerDoc", "Node.ownerDocument")}}</td>
+   <td>{{Spec2("DOM3 Core")}}</td>
+   <td>No change</td>
+  </tr>
+  <tr>
+   <td>{{SpecName("DOM2 Core", "core.html#node-ownerDoc", "Node.ownerDocument")}}</td>
+   <td>{{Spec2("DOM2 Core")}}</td>
+   <td>Initial definition</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility" name="Browser_compatibility">ブラウザ実装状況</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</th>
+  </tr>
+  <tr>
+   <td>基本サポート</td>
+   <td>{{CompatUnknown}}</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>Firefox Mobile (Gecko)</th>
+   <th>IE Mobile</th>
+   <th>Opera Mobile</th>
+   <th>Safari Mobile</th>
+  </tr>
+  <tr>
+   <td>基本サポート</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<p>[1] Starting in Gecko 9.0 {{geckoRelease("9.0")}}, the <code>ownerDocument</code> of doctype nodes (that is, nodes for which {{domxref("Node.nodeType")}} is <code>Node.DOCUMENT_TYPE_NODE</code> or 10) is no longer <code>null</code>. Instead, the <code>ownerDocument</code> is the document on which <a href="https://developer.mozilla.org/en-US/docs/DOM/DOMImplementation.createDocumentType"><code>document.implementation.createDocumentType()</code></a> was called.</p>
+
+<p>[2] <a href="http://msdn.microsoft.com/en-us/library/ie/ms534315%28v=vs.85%29.aspx">http://msdn.microsoft.com/en-us/library/ie/ms534315(v=vs.85).aspx</a></p>
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