1 files changed, 83 insertions, 0 deletions
diff --git a/files/ko/web/javascript/reference/global_objects/string/tolowercase/index.html b/files/ko/web/javascript/reference/global_objects/string/tolowercase/index.html
new file mode 100644
index 0000000000..d91e48729f
--- /dev/null
+++ b/files/ko/web/javascript/reference/global_objects/string/tolowercase/index.html
@@ -0,0 +1,83 @@
+---
+title: String.prototype.toLowerCase()
+slug: Web/JavaScript/Reference/Global_Objects/String/toLowerCase
+tags:
+  - JavaScript
+  - Method
+  - Prototype
+  - Reference
+  - String
+translation_of: Web/JavaScript/Reference/Global_Objects/String/toLowerCase
+---
+<div>{{JSRef}}</div>
+
+<div><strong><code>toLowerCase()</code></strong> 메서드는 문자열을 소문자로 변환해 반환합니다.</div>
+
+<div> </div>
+
+<div>{{EmbedInteractiveExample("pages/js/string-tolowercase.html")}}</div>
+
+<h2 id="구문">구문</h2>
+
+<pre class="syntaxbox"><code><var>str</var>.toLowerCase()</code></pre>
+
+<h3 id="반환값">반환값</h3>
+
+<p>호출 문자열을 소문자로 변환한 새로운 문자열</p>
+
+<h2 id="설명">설명</h2>
+
+<p><code>toLowerCase()</code> 메서드는 호출 문자열을 소문자로 변환해 반환합니다.  <code>toLowerCase()</code> 는 원래의 <code>str</code>에 영향을 주지 않습니다.</p>
+
+<h2 id="예제">예제</h2>
+
+<h3 id="toLowerCase()"> <code>toLowerCase()</code></h3>
+
+<pre class="brush: js">console.log('ALPHABET'.toLowerCase()); // 'alphabet'
+</pre>
+
+<h2 id="명세">명세</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">표준</th>
+   <th scope="col">상태</th>
+   <th scope="col">비고</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES1')}}</td>
+   <td>{{Spec2('ES1')}}</td>
+   <td>Initial definition. Implemented in JavaScript 1.0.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES5.1', '#sec-15.5.4.16', 'String.prototype.toLowerCase')}}</td>
+   <td>{{Spec2('ES5.1')}}</td>
+   <td> </td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ES6', '#sec-string.prototype.tolowercase', 'String.prototype.toLowerCase')}}</td>
+   <td>{{Spec2('ES6')}}</td>
+   <td> </td>
+  </tr>
+  <tr>
+   <td>{{SpecName('ESDraft', '#sec-string.prototype.tolowercase', 'String.prototype.toLowerCase')}}</td>
+   <td>{{Spec2('ESDraft')}}</td>
+   <td> </td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="브라우저_호환성">브라우저 호환성</h2>
+
+<p class="hidden">The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> and send us a pull request.</p>
+
+<p>{{Compat("javascript.builtins.String.toLowerCase")}}</p>
+
+<h2 id="참조">참조</h2>
+
+<ul>
+ <li>{{jsxref("String.prototype.toLocaleLowerCase()")}}</li>
+ <li>{{jsxref("String.prototype.toLocaleUpperCase()")}}</li>
+ <li>{{jsxref("String.prototype.toUpperCase()")}}</li>
+</ul>