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+---
+title: ChildNode.before()
+slug: Web/API/ChildNode/before
+tags:
+  - API
+  - DOM
+  - 노드
+  - 레퍼런스
+  - 메소드
+  - 실험중
+translation_of: Web/API/ChildNode/before
+---
+<div>{{APIRef("DOM")}} {{SeeCompatTable}}</div>
+
+<p><code><strong>ChildNode.before</strong></code> 메소드는 <code>ChildNode</code> 의 부모가 가진 자식의 <code>ChildNode</code> 바로 이전에 {{domxref("Node")}} 또는 {{domxref("DOMString")}} 객체의 집합을 삽입합니다.{{domxref("DOMString")}} 객체는 {{domxref("Text")}} 노드와 동일하게 삽입됩니다.</p>
+
+<h2 id="문법">문법</h2>
+
+<pre class="syntaxbox">[Throws, Unscopable]
+void ChildNode.before((Node or DOMString)... nodes);
+</pre>
+
+<h3 id="파라미터">파라미터</h3>
+
+<dl>
+ <dt><code>nodes</code></dt>
+ <dd>삽입할 {{domxref("Node")}} 또는 {{domxref("DOMString")}} 객체의 집합입니다.</dd>
+</dl>
+
+<h3 id="예외">예외</h3>
+
+<ul>
+ <li>{{domxref("HierarchyRequestError")}}: 노드는 계층 구조의 특정 지점에 삽입될 수 없습니다.</li>
+</ul>
+
+<h2 id="예제">예제</h2>
+
+<h3 id="엘리먼트_삽입하기">엘리먼트 삽입하기</h3>
+
+<pre class="brush: js">var parent = document.createElement("div");
+var child = document.createElement("p");
+parent.appendChild(child);
+var span = document.createElement("span");
+
+child.before(span);
+
+console.log(parent.outerHTML);
+// "&lt;div&gt;&lt;span&gt;&lt;/span&gt;&lt;p&gt;&lt;/p&gt;&lt;/div&gt;"
+</pre>
+
+<h3 id="텍스트_삽입하기">텍스트 삽입하기</h3>
+
+<pre class="brush: js">var parent = document.createElement("div");
+var child = document.createElement("p");
+parent.appendChild(child);
+
+child.before("Text");
+
+console.log(parent.outerHTML);
+// "&lt;div&gt;Text&lt;p&gt;&lt;/p&gt;&lt;/div&gt;"</pre>
+
+<h3 id="엘리먼트와_텍스트_삽입하기">엘리먼트와 텍스트 삽입하기</h3>
+
+<pre class="brush: js">var parent = document.createElement("div");
+var child = document.createElement("p");
+parent.appendChild(child);
+var span = document.createElement("span");
+
+child.before(span, "Text");
+
+console.log(parent.outerHTML);
+// "&lt;div&gt;&lt;span&gt;&lt;/span&gt;Text&lt;p&gt;&lt;/p&gt;&lt;/div&gt;"</pre>
+
+<h3 id="ChildNode.before()_는_범위를_지정할_수_없습니다"><code>ChildNode.before()</code> 는 범위를 지정할 수 없습니다</h3>
+
+<p><code>before()</code> 메소드는 <code>with</code> 구문으로 범위를 지정할 수 없습니다. 자세한 내용은 {{jsxref("Symbol.unscopables")}} 문서를 확인하세요.</p>
+
+<pre class="brush: js">with(node) {
+  before("foo");
+}
+// ReferenceError: before is not defined </pre>
+
+<h2 id="폴리필">폴리필</h2>
+
+<p>다음 코드를 사용해 인터넷 익스플로러 9 이상에서 <code>before() 메소드</code> 를 폴리필링할 수 있습니다.</p>
+
+<pre class="brush: js">// from: https://github.com/jserz/js_piece/blob/master/DOM/ChildNode/before()/before().md
+(function (arr) {
+  arr.forEach(function (item) {
+    if (item.hasOwnProperty('before')) {
+      return;
+    }
+    Object.defineProperty(item, 'before', {
+      configurable: true,
+      enumerable: true,
+      writable: true,
+      value: function before() {
+        var argArr = Array.prototype.slice.call(arguments),
+          docFrag = document.createDocumentFragment();
+
+        argArr.forEach(function (argItem) {
+          var isNode = argItem instanceof Node;
+          docFrag.appendChild(isNode ? argItem : document.createTextNode(String(argItem)));
+        });
+
+        this.parentNode.insertBefore(docFrag, this);
+      }
+    });
+  });
+})([Element.prototype, CharacterData.prototype, DocumentType.prototype]);</pre>
+
+<h2 id="명세">명세</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">명세</th>
+   <th scope="col">상태</th>
+   <th scope="col">코멘트</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM WHATWG', '#dom-childnode-before', 'ChildNode.before()')}}</td>
+   <td>{{Spec2('DOM WHATWG')}}</td>
+   <td>초기 정의.</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="브라우저_호환성">브라우저 호환성</h2>
+
+
+
+<p>{{Compat("api.ChildNode.before")}}</p>
+
+<h2 id="함께_보기">함께 보기</h2>
+
+<ul>
+ <li>{{domxref("ChildNode")}} 와 {{domxref("ParentNode")}}</li>
+ <li>{{domxref("ChildNode.after()")}}</li>
+ <li>{{domxref("ParentNode.append()")}}</li>
+ <li>{{domxref("Node.appendChild()")}}</li>
+ <li>{{domxref("Node.insertBefore()")}}</li>
+ <li>{{domxref("NodeList")}}</li>
+</ul>