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diff --git a/files/ko/web/javascript/reference/global_objects/reflect/preventextensions/index.html b/files/ko/web/javascript/reference/global_objects/reflect/preventextensions/index.html new file mode 100644 index 0000000000..364b46a5fa --- /dev/null +++ b/files/ko/web/javascript/reference/global_objects/reflect/preventextensions/index.html @@ -0,0 +1,103 @@ +--- +title: Reflect.preventExtensions() +slug: Web/JavaScript/Reference/Global_Objects/Reflect/preventExtensions +tags: + - ECMAScript 2015 + - JavaScript + - Method + - Reference + - Reflect +translation_of: Web/JavaScript/Reference/Global_Objects/Reflect/preventExtensions +--- +<div>{{JSRef}}</div> + +<p><span class="seoSummary"><code><strong>Reflect.preventExtensions()</strong></code> 정적 메서드는 새로운 속성을 객체에 추가하지 못하도록 완전히 막습니다. 즉, 미래의 객체 확장을 막습니다.</span> {{jsxref("Object.preventExtensions()")}}와 유사하지만 {{anch("Object.preventExtensions()와의 차이점", "차이점")}}도 있습니다.</p> + +<div>{{EmbedInteractiveExample("pages/js/reflect-preventextensions.html")}}</div> + + + +<h2 id="구문">구문</h2> + +<pre class="syntaxbox">Reflect.preventExtensions(<em>target</em>) +</pre> + +<h3 id="매개변수">매개변수</h3> + +<dl> + <dt><code>target</code></dt> + <dd>확장을 방지할 대상 객체.</dd> +</dl> + +<h3 id="반환_값">반환 값</h3> + +<p>대상의 확장을 성공적으로 방지했는지 나타내는 {{jsxref("Boolean")}}.</p> + +<h3 id="예외">예외</h3> + +<p><code>target</code>이 {{jsxref("Object")}}가 아니면 {{jsxref("TypeError")}}.</p> + +<h2 id="설명">설명</h2> + +<p><code>Reflect.preventExtensions()</code> 메서드는 새로운 속성을 객체에 추가하지 못하도록 완전히 막습니다. 즉, 미래의 객체 확장을 막습니다. {{jsxref("Object.preventExtensions()")}}와 유사합니다.</p> + +<h2 id="예제">예제</h2> + +<h3 id="Reflect.preventExtensions()_사용하기"><code>Reflect.preventExtensions()</code> 사용하기</h3> + +<p>{{jsxref("Object.preventExtensions()")}}도 참고하세요.</p> + +<pre class="brush: js">// 객체는 기본적으로 확장 가능 +var empty = {}; +Reflect.isExtensible(empty); // === true + +// ...하지만 바꿀 수 있음 +Reflect.preventExtensions(empty); +Reflect.isExtensible(empty); // === false +</pre> + +<h3 id="Object.preventExtensions()와의_차이점"><code>Object.preventExtensions()</code>와의 차이점</h3> + +<p><code>Reflect.preventExtensions()</code>는 첫 번째 매개변수가 {{glossary("Primitive", "원시값")}}이면 {{jsxref("TypeError")}}를 던집니다. 반면 {{jsxref("Object.preventExtensions()")}}는 우선 객체로 변환을 시도합니다.</p> + +<pre class="brush: js">Reflect.preventExtensions(1); +// TypeError: 1 is not an object + +Object.preventExtensions(1); +// 1 +</pre> + +<h2 id="명세">명세</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('ES2015', '#sec-reflect.preventextensions', 'Reflect.preventExtensions')}}</td> + <td>{{Spec2('ES2015')}}</td> + <td>Initial definition.</td> + </tr> + <tr> + <td>{{SpecName('ESDraft', '#sec-reflect.preventextensions', 'Reflect.preventExtensions')}}</td> + <td>{{Spec2('ESDraft')}}</td> + <td> </td> + </tr> + </tbody> +</table> + +<h2 id="브라우저_호환성">브라우저 호환성</h2> + + + +<p>{{Compat("javascript.builtins.Reflect.preventExtensions")}}</p> + +<h2 id="같이_보기">같이 보기</h2> + +<ul> + <li>{{jsxref("Reflect")}}</li> + <li>{{jsxref("Object.isExtensible()")}}</li> +</ul> |