---
title: ParentNode.children
slug: orphaned/Web/API/ParentNode/children
translation_of: Web/API/ParentNode/children
original_slug: Web/API/ParentNode/children
---
<p>{{ APIRef("DOM") }}</p>

<p><code><strong>Node.children</strong></code> 唯讀屬性會回傳一個 <code>Node</code> 之子{{domxref("Element","元素")}}的動態（live）{{domxref("HTMLCollection")}}。</p>

<h2 id="語法">語法</h2>

<pre class="syntaxbox">var <em>children</em> = <em>node</em>.children;</pre>

<p><code><em>children</em></code> 是一個 {{ domxref("HTMLCollection") }}，為一個有順序性、由 <em><code>node</code></em> 中的 DOM 子元素所組成的集合。假如沒有子元素，則 <code><em>children</em></code> 內便不包含任何元素，且 <code>length</code> 為 <code>0</code>。</p>

<h2 id="範例">範例</h2>

<pre class="brush: js">var foo = document.getElementById('foo');
for (var i = 0; i &lt; foo.children.length; i++) {
    console.log(foo.children[i].tagName);
}
</pre>

<h2 id="Polyfill">Polyfill</h2>

<pre class="brush: js">// Overwrites native 'children' prototype.
// Adds Document &amp; DocumentFragment support for IE9 &amp; Safari.
// Returns array instead of HTMLCollection.
;(function(constructor) {
    if (constructor &amp;&amp;
        constructor.prototype &amp;&amp;
        constructor.prototype.children == null) {
        Object.defineProperty(constructor.prototype, 'children', {
            get: function() {
                var i = 0, node, nodes = this.childNodes, children = [];
                while (node = nodes[i++]) {
                    if (node.nodeType === 1) {
                        children.push(node);
                    }
                }
                return children;
            }
        });
    }
})(window.Node || window.Element);
</pre>

<h2 id="規範">規範</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
  <tr>
   <td>{{SpecName('DOM WHATWG', '#dom-parentnode-children', 'ParentNode.children')}}</td>
   <td>{{Spec2('DOM WHATWG')}}</td>
   <td>Initial definition.</td>
  </tr>
 </tbody>
</table>

<h2 id="瀏覽器相容性">瀏覽器相容性</h2>

<p>{{ CompatibilityTable() }}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Edge</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Basic support (on {{domxref("Element")}})</td>
   <td>1.0</td>
   <td>{{CompatGeckoDesktop("1.9.1")}}</td>
   <td>9.0 [1]</td>
   <td>38.0</td>
   <td>10.0</td>
   <td>4.0</td>
  </tr>
  <tr>
   <td>Support on {{domxref("Document")}} and {{domxref("DocumentFragment")}} {{experimental_inline}}</td>
   <td>29.0</td>
   <td>{{CompatGeckoDesktop("25.0")}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatNo}}</td>
   <td>16.0</td>
   <td>{{CompatNo}}</td>
  </tr>
  <tr>
   <td>Support on {{domxref("SVGElement")}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatNo}}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support (on {{domxref("Element")}})</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{CompatGeckoMobile("1.9.1")}}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
   <td>{{ CompatVersionUnknown() }}</td>
  </tr>
  <tr>
   <td>Support on {{domxref("Document")}} and {{domxref("DocumentFragment")}} {{experimental_inline}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoMobile("25.0")}}</td>
   <td>{{CompatNo}}</td>
   <td>16.0</td>
   <td>{{CompatNo}}</td>
  </tr>
 </tbody>
</table>
</div>

<p>[1] Internet Explorer 6, 7 and 8 supported it, but erroneously includes {{domxref("Comment")}} nodes.</p>

<h2 id="參見">參見</h2>

<ul>
 <li>The {{domxref("ParentNode")}} and {{domxref("ChildNode")}} interfaces.</li>
 <li>
  <div class="syntaxbox">Object types implementing this interface: {{domxref("Document")}}, {{domxref("Element")}}, and {{domxref("DocumentFragment")}}.</div>
 </li>
</ul>