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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.normalize
+slug: Web/API/Node/normalize
+tags:
+ - DOM
+ - Gecko
+ - Node
+translation_of: Web/API/Node/normalize
+---
+<div>{{ApiRef}}</div>
+
+<h2 id="Summary" name="Summary">概要</h2>
+
+<p>指定ノードの空のノードを削除し、隣接するテキストノードをひとつに纏め、文書を「正規化 (normalize)」します。</p>
+
+<h2 id="Syntax" name="Syntax">構文</h2>
+
+<pre class="syntaxbox"><em>element</em>.normalize();
+</pre>
+
+<h2 id="Example" name="Example">例</h2>
+
+<pre class="brush:js;highlight:10;">var wrapper = document.createElement("div");
+
+wrapper.appendChild( document.createTextNode("Part 1 ") );
+wrapper.appendChild( document.createTextNode("Part 2 ") );
+
+// wrapper.childNodes[0].textContent === "Part 1 "
+// wrapper.childNodes[1].textContent === "Part 2 "
+// この時点で、wrapper の 子ノード数は 2 です。 wrapper.childNodes.length === 2
+
+wrapper.normalize(); // 正規化
+
+// 正規化後の wrapper の子ノード数は 1 となっています。 wrapper.childNodes.length === 1
+// 挿入処理の為に冗長化したノードはひとつに纏められています。 wrapper.childNodes[0].textContent === "Part 1 Part 2"
+</pre>
+
+<h2 id="Specification" name="Specification">仕様書</h2>
+
+<ul>
+ <li><a href="http://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-normalize">DOM Level 2 Core: Node.normalize</a></li>
+</ul>
+
+<h2 id="See_also" name="See_also">関連情報</h2>
+
+<ul>
+ <li><a href="/ja/docs/Web/API/Text.splitText"><code>Text.splitText</code></a></li>
+</ul>