From 5192b3e5cfef0c1afca0ce844f9ab6b4d14259e9 Mon Sep 17 00:00:00 2001
From: Masahiro FUJIMOTO <mfujimot@gmail.com>
Date: Fri, 27 Aug 2021 20:33:27 +0900
Subject: 旧 ParentNode の childElementCount プロパティの文書を整備 (#2094)
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- 2021/08/15 時点の英語版に同期
---
 .../web/api/document/childelementcount/index.html  | 46 +++++++++++++++++++++
 .../documentfragment/childelementcount/index.html  | 48 ++++++++++++++++++++++
 .../web/api/element/childelementcount/index.html   |  4 +-
 3 files changed, 96 insertions(+), 2 deletions(-)
 create mode 100644 files/ja/web/api/document/childelementcount/index.html
 create mode 100644 files/ja/web/api/documentfragment/childelementcount/index.html

(limited to 'files/ja/web')

diff --git a/files/ja/web/api/document/childelementcount/index.html b/files/ja/web/api/document/childelementcount/index.html
new file mode 100644
index 0000000000..fcd6244dd0
--- /dev/null
+++ b/files/ja/web/api/document/childelementcount/index.html
@@ -0,0 +1,46 @@
+---
+title: Document.childElementCount
+slug: Web/API/Document/childElementCount
+tags:
+  - API
+  - DOM
+  - Property
+  - Reference
+browser-compat: api.Document.childElementCount
+translation_of: Web/API/Document/childElementCount
+---
+<div>{{ APIRef("DOM") }}</div>
+
+<p><code><strong>Document.childElementCount</strong></code> は読み取り専用のプロパティで、文書の子要素の数を返します。</p>
+
+<p>特定の要素の子要素の数を取得する場合は、 {{domxref("Element.childElementCount")}} を参照してください。</p>
+
+<h2 id="Syntax">構文</h2>
+
+<pre class="brush: js"><em>document</em>.childElementCount;
+</pre>
+
+<h2 id="Example">例</h2>
+
+<pre class="brush:js">
+document.children;
+// HTMLCollection で、ふつうは &lt;html&gt; 要素をこの文書の唯一の子として含んでいる
+
+document.childElementCount;
+// 1
+</pre>
+
+<h2 id="Specifications">仕様書</h2>
+
+{{Specifications}}
+
+<h2 id="Browser_compatibility">ブラウザーの互換性</h2>
+
+<p>{{Compat}}</p>
+
+<h2 id="See_also">関連情報</h2>
+
+<ul>
+  <li>{{domxref("Element.childElementCount")}}</li>
+  <li>{{domxref("DocumentFragment.childElementCount")}}</li>
+</ul>
diff --git a/files/ja/web/api/documentfragment/childelementcount/index.html b/files/ja/web/api/documentfragment/childelementcount/index.html
new file mode 100644
index 0000000000..16bc5ed135
--- /dev/null
+++ b/files/ja/web/api/documentfragment/childelementcount/index.html
@@ -0,0 +1,48 @@
+---
+title: DocumentFragment.childElementCount
+slug: Web/API/DocumentFragment/childElementCount
+tags:
+  - API
+  - DOM
+  - Property
+  - Reference
+browser-compat: api.DocumentFragment.childElementCount
+translation_of: Web/API/DocumentFragment/childElementCount
+---
+<div>{{ APIRef("DOM") }}</div>
+
+<p><code><strong>Document.childElementCount</strong></code> は読み取り専用のプロパティで、 <code>DocumentFragment</code> の子要素の数を返します。</p>
+
+<p>特定の要素の子要素の数を取得する場合は、 {{domxref("Element.childElementCount")}} を参照してください。</p>
+
+<h2 id="Syntax">構文</h2>
+
+<pre class="brush: js"><em>fragment</em>.childElementCount;
+</pre>
+
+<h2 id="Example">例</h2>
+
+<pre class="brush:js">
+let fragment = new DocumentFragment()
+fragment.childElementCount; // 0
+
+let paragraph = document.createElement('p')
+fragment.appendChild(paragraph)
+
+fragment.childElementCount; // 1
+</pre>
+
+<h2 id="Specifications">仕様書</h2>
+
+{{Specifications}}
+
+<h2 id="Browser_compatibility">ブラウザーの互換性</h2>
+
+<p>{{Compat}}</p>
+
+<h2 id="See_also">関連情報</h2>
+
+<ul>
+  <li>{{domxref("Element.childElementCount")}}</li>
+  <li>{{domxref("Document.childElementCount")}}</li>
+</ul>
diff --git a/files/ja/web/api/element/childelementcount/index.html b/files/ja/web/api/element/childelementcount/index.html
index 57d59747ce..c3520c9a31 100644
--- a/files/ja/web/api/element/childelementcount/index.html
+++ b/files/ja/web/api/element/childelementcount/index.html
@@ -22,11 +22,11 @@ original_slug: Web/API/ParentNode/childElementCount
 
 <pre class="brush:js">let sidebar = document.getElementById('sidebar');
 if (sidebar.childElementCount &gt; 0) {
-  // Do something
+  // 何もしない
 }
 </pre>
 
-<h2 id="Specification">仕様書</h2>
+<h2 id="Specifications">仕様書</h2>
 
 {{Specifications}}
 
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