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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: Node.hasChildNodes
+slug: Web/API/Node/hasChildNodes
+tags:
+ - DOM
+ - Gecko
+ - Gecko DOM Reference
+translation_of: Web/API/Node/hasChildNodes
+---
+<div>
+ {{ApiRef}}</div>
+<h2 id="Summary" name="Summary">概要</h2>
+<p><strong>hasChildNodes</strong> は指定した<a href="/ja/docs/Web/API/Node">ノード</a>が<a href="/ja/docs/Web/API/Node.childNodes">子ノード</a>を持つか否かを示す<a href="/ja/docs/JavaScript/Reference/Global_Objects/Boolean">真偽値</a>を返します。</p>
+<h2 id="Syntax" name="Syntax">構文</h2>
+<pre class="syntaxbox"><code>node.hasChildNodes()</code></pre>
+<h2 id="Example" name="Example">例</h2>
+<p><code>"foo"</code> を id に持つ要素の子ノードの存在を確認し、存在する場合は最初の子ノードを削除する例を以下に示します。</p>
+<pre class="brush:js;highlight:[3];">var foo = document.getElementById("foo");
+
+if ( foo.hasChildNodes() ) {
+ foo.removeChild( foo.childNodes[0] );
+}</pre>
+<h2 id="Specification" name="Specification">仕様書</h2>
+<ul>
+ <li><a href="http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-810594187">hasChildNodes</a></li>
+</ul>
+<h2 id="See_also" name="See_also">関連情報</h2>
+<ul>
+ <li>{{domxref("Node.childNodes")}}</li>
+ <li>{{domxref("Node.hasAttributes")}}</li>
+</ul>