Add unary operators (#1385)

* Add unary operators

* Update files/ko/web/javascript/reference/operators/unary_plus/index.html

Co-authored-by: hochan Lee <hochan049@gmail.com>

* Update files/ko/web/javascript/reference/operators/unary_plus/index.html

Co-authored-by: hochan Lee <hochan049@gmail.com>

* Update files/ko/web/javascript/reference/operators/unary_negation/index.html

Co-authored-by: alattalatta <urty5656@gmail.com>

* Update files/ko/web/javascript/reference/operators/unary_plus/index.html

* Update files/ko/web/javascript/reference/operators/unary_negation/index.html

Co-authored-by: hochan Lee <hochan049@gmail.com>
Co-authored-by: alattalatta <urty5656@gmail.com>

1 files changed, 64 insertions, 0 deletions

diff --git a/files/ko/web/javascript/reference/operators/unary_negation/index.html b/files/ko/web/javascript/reference/operators/unary_negation/index.html
new file mode 100644
index 0000000000..46f8f01f48
--- /dev/null
+++ b/files/ko/web/javascript/reference/operators/unary_negation/index.html
@@ -0,0 +1,64 @@
+---
+title: 단항 부정 (-)
+slug: Web/JavaScript/Reference/Operators/Unary_negation
+tags:
+- JavaScript
+- Language feature
+- Operator
+- Reference
+browser-compat: javascript.operators.unary_negation
+---
+<div>{{jsSidebar("Operators")}}</div>
+
+<p>단항 부정 연산자(<code>-</code>)는 피연산자 앞에 위치하며, 피연산자의 부호를 부정합니다. 즉 양수는 음수로, 음수는 양수로 바꿉니다.</p>
+
+<div>{{EmbedInteractiveExample("pages/js/expressions-unary-negation.html")}}</div>
+
+
+<h2 id="Syntax">구문</h2>
+
+<pre class="brush: js">-<var>x</var>
+</pre>
+
+<h2 id="Examples">예제</h2>
+
+<h3 id="Negating_numbers">숫자 부정하기</h3>
+
+<pre class="brush: js">const x = 3;
+const y = -x;
+
+// y = -3
+// x = 3
+</pre>
+
+<h3 id="Negating_non-numbers">숫자가 아닌 값을 부정하기</h3>
+
+<p>단항 부정 연산자는 숫자가 아닌 값을 숫자로 변환할 수 있습니다.</p>
+
+<pre class="brush: js">const x = "4";
+const y = -x;
+
+// y = -4
+</pre>
+
+<h2 id="Specifications">명세</h2>
+
+{{Specifications}}
+
+<h2 id="Browser_compatibility">브라우저 호환성</h2>
+
+<p>{{Compat}}</p>
+
+<h2 id="See_also">같이 보기</h2>
+
+<ul>
+  <li><a href="/ko/docs/Web/JavaScript/Reference/Operators/Addition">더하기 연산자</a></li>
+  <li><a href="/ko/docs/Web/JavaScript/Reference/Operators/Subtraction">빼기 연산자</a></li>
+  <li><a href="/ko/docs/Web/JavaScript/Reference/Operators/Division">나누기 연산자</a></li>
+  <li><a href="/ko/docs/Web/JavaScript/Reference/Operators/Multiplication">곱하기 연산자</a></li>
+  <li><a href="/ko/docs/Web/JavaScript/Reference/Operators/Remainder">나머지 연산자</a></li>
+  <li><a href="/ko/docs/Web/JavaScript/Reference/Operators/Exponentiation">지수 연산자</a></li>
+  <li><a href="/ko/docs/Web/JavaScript/Reference/Operators/Increment">증가 연산자</a></li>
+  <li><a href="/ko/docs/Web/JavaScript/Reference/Operators/Decrement">감소 연산자</a></li>
+  <li><a href="/ko/docs/Web/JavaScript/Reference/Operators/Unary_plus">단항 더하기 연산자</a></li>
+</ul>