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diff --git a/files/ko/web/javascript/reference/global_objects/array/keys/index.html b/files/ko/web/javascript/reference/global_objects/array/keys/index.html new file mode 100644 index 0000000000..4afb826a3e --- /dev/null +++ b/files/ko/web/javascript/reference/global_objects/array/keys/index.html @@ -0,0 +1,69 @@ +--- +title: Array.prototype.keys() +slug: Web/JavaScript/Reference/Global_Objects/Array/keys +tags: + - Array + - ECMAScript 2015 + - Iterator + - JavaScript + - Method + - Prototype + - Reference +translation_of: Web/JavaScript/Reference/Global_Objects/Array/keys +--- +<div>{{JSRef}}</div> + +<p><code><strong>keys()</strong></code> 메서드는 배열의 각 인덱스를 키 값으로 가지는 새로운 <code><strong>Array Iterator</strong></code> 객체를 반환합니다.</p> + +<p>{{EmbedInteractiveExample("pages/js/array-keys.html")}}</p> + +<h2 id="구문">구문</h2> + +<pre class="syntaxbox"><code><var>arr</var>.keys()</code></pre> + +<h3 id="반환_값">반환 값</h3> + +<p>새로운 {{jsxref("Array")}} 반복기 객체.</p> + +<h2 id="예제">예제</h2> + +<h3 id="키_반복기는_빈_인덱스를_무시하지_않음">키 반복기는 빈 인덱스를 무시하지 않음</h3> + +<pre><code>var arr = ['a', , 'c']; +var sparseKeys = Object.keys(arr); +var denseKeys = [...arr.keys()]; +console.log(sparseKeys); // ['0', '2'] +console.log(denseKeys); // [0, 1, 2]</code></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('ES6', '#sec-array.prototype.keys', 'Array.prototype.keys')}}</td> + <td>{{Spec2('ES6')}}</td> + <td>Initial definition.</td> + </tr> + <tr> + <td>{{SpecName('ESDraft', '#sec-array.prototype.keys', 'Array.prototype.keys')}}</td> + <td>{{Spec2('ESDraft')}}</td> + <td> </td> + </tr> + </tbody> +</table> + +<h2 id="브라우저_호환성">브라우저 호환성</h2> + +<p>{{Compat("javascript.builtins.Array.keys")}}</p> + +<h2 id="같이_보기">같이 보기</h2> + +<ul> + <li>{{jsxref("Array.prototype.values()")}}</li> + <li>{{jsxref("Array.prototype.entries()")}}</li> +</ul> |