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authorJongha Kim <kim.jongha@gmail.com>2021-07-12 23:04:21 +0900
committerGitHub <noreply@github.com>2021-07-12 23:04:21 +0900
commit9358d5be7f62495bc426ddcd839e17ebdc741e6b (patch)
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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>
Diffstat (limited to 'files/ko/web')
-rw-r--r--files/ko/web/javascript/reference/operators/unary_negation/index.html64
-rw-r--r--files/ko/web/javascript/reference/operators/unary_plus/index.html71
2 files changed, 135 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>
diff --git a/files/ko/web/javascript/reference/operators/unary_plus/index.html b/files/ko/web/javascript/reference/operators/unary_plus/index.html
new file mode 100644
index 0000000000..ee2edcc3be
--- /dev/null
+++ b/files/ko/web/javascript/reference/operators/unary_plus/index.html
@@ -0,0 +1,71 @@
+---
+title: 단항 더하기 (+)
+slug: Web/JavaScript/Reference/Operators/Unary_plus
+tags:
+- JavaScript
+- Language feature
+- Operator
+- Reference
+browser-compat: javascript.operators.unary_plus
+---
+<div>{{jsSidebar("Operators")}}</div>
+
+<p>단항 더하기 연산자(<code>+</code>)는 피연산자 앞에 위치하며 피연산자를 평가하지만, 만약 피연산자가 숫자가 아니라면 숫자로 변환을 시도합니다.</p>
+
+<div>{{EmbedInteractiveExample("pages/js/expressions-unary-plus.html", "taller")}}</div>
+
+<h2 id="Syntax">구문</h2>
+
+<pre class="brush: js">+<var>x</var>
+</pre>
+
+<h2 id="Description">설명</h2>
+
+<p>단항 부정 (<code>-</code>)도 숫자가 아닌 값을 변환할 수 있지만, 단항 더하기는
+ 어떤 것을 숫자로 변환하는 가장 빠르고 선호하는 방법입니다. 왜냐하면 숫자에 대해 다른 연산을 수행하지 않기 때문입니다.
+ 정수와 실수의 문자열 표현뿐 아니라 문자열이 아닌 값인 <code>true</code>, <code>false</code> 및 <code>null</code> 또한 변환할 수 있습니다.
+ 10진수 및 16진수(<code>0x</code> 접두사) 형식의 정수 모두 지원됩니다. 음수도 지원됩니다(16진수 제외).
+ BigInt 값에 연산자를 사용하면 TypeError가 발생합니다. 특정 값을 구문 분석할 수 없으면 {{jsxref("NaN")}}으로 평가됩니다.</p>
+
+<h2 id="Examples">예제</h2>
+
+<h3 id="Usage_with_numbers">숫자에 사용하기</h3>
+
+<pre class="brush: js">const x = 1;
+const y = -1;
+
+console.log(+x);
+// 1
+console.log(+y);
+// -1</pre>
+
+<h3 id="Usage_with_non-numbers">숫자가 아닌 값에 사용하기</h3>
+
+<pre class="brush: js">+true // 1
++false // 0
++null // 0
++function(val){ return val } // NaN
++1n // TypeError 발생: BigInt 값을 숫자로 변경할 수 없습니다
+</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_negation">단항 부정 연산자</a></li>
+</ul>