files/ko/web/api/node/contains/index.html


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---
title: Node.contains()
slug: Web/API/Node/contains
translation_of: Web/API/Node/contains
---
<div>{{APIRef("DOM")}}</div>

<p><strong><code>Node.contains()</code></strong> 메소드는 주어진 인자가 node 의 자손인지, 아닌지에 대한 {{jsxref("Boolean")}} 값을 리턴합니다.</p>

<h2 id="Syntax">Syntax</h2>

<pre class="syntaxbox">node.contains( otherNode )
</pre>

<h2 id="Example">Example</h2>

<p>이 함수는 요소가 페이지의 body 안에 있는지 검사합니다.  <code>contains</code> 는 포괄적이므로 node 가 body 자기 자신일 경우에도 <font face="consolas, Liberation Mono, courier, monospace"><span style="background-color: rgba(220, 220, 220, 0.5);">true</span></font> 가 반환됩니다. 만약 이걸 원하지 않는 경우에는 node 가 body 자기 자신인지 검사하여  <code>false</code> 를 반환하여 버리면 됩니다.</p>

<pre class="brush:js">function isInPage(node) {
  return (node === document.body) ? false : document.body.contains(node);
}</pre>

<h2 id="Specifications" name="Specifications">Specifications</h2>

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

<h2 id="Browser_compatibility">Browser compatibility</h2>

<p>{{CompatibilityTable}}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Edge</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoDesktop("9.0")}}</td>
   <td>5.0<sup>[1]</sup></td>
   <td>{{CompatVersionUnknown}}</td>
   <td>3.0<sup>[2]</sup></td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Edge</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoMobile("9.0")}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<p>[1] Internet Explorer <a href="https://connect.microsoft.com/IE/feedback/details/780874/node-contains-is-incorrect">only supports <code>contains()</code> for elements</a>.</p>

<p>[2] Safari 2.x <a href="https://books.google.de/books?id=KW9G9rdlStIC&amp;lpg=PA299&amp;ots=4XRWUISZVr&amp;dq=safari+node+contains+professional+javascript&amp;pg=PA299&amp;hl=de#v=onepage&amp;q=safari%20node%20contains%20professional%20javascript&amp;f=false">implemented <code>contains()</code> incorrectly</a>.</p>

<h2 id="See_also">See also</h2>

<ul>
 <li>{{domxref("Node.compareDocumentPosition")}}</li>
 <li>{{domxref("Node.hasChildNodes")}}</li>
</ul>