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author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:42:17 -0500 |
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committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:42:17 -0500 |
commit | da78a9e329e272dedb2400b79a3bdeebff387d47 (patch) | |
tree | e6ef8aa7c43556f55ddfe031a01cf0a8fa271bfe /files/ko/web/javascript/reference/global_objects/math/abs/index.html | |
parent | 1109132f09d75da9a28b649c7677bb6ce07c40c0 (diff) | |
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diff --git a/files/ko/web/javascript/reference/global_objects/math/abs/index.html b/files/ko/web/javascript/reference/global_objects/math/abs/index.html new file mode 100644 index 0000000000..c66172647d --- /dev/null +++ b/files/ko/web/javascript/reference/global_objects/math/abs/index.html @@ -0,0 +1,104 @@ +--- +title: Math.abs() +slug: Web/JavaScript/Reference/Global_Objects/Math/abs +tags: + - JavaScript + - Math + - Method + - Reference +translation_of: Web/JavaScript/Reference/Global_Objects/Math/abs +--- +<div>{{JSRef}}</div> + +<p><span class="seoSummary"><strong><code>Math.abs()</code></strong> 함수는 주어진 숫자의 절대값을 반환합니다.</span> 즉,</p> + +<p><math display="block"><semantics><mrow><mstyle mathvariant="monospace"><mrow><mo lspace="0em" rspace="thinmathspace">Math.abs</mo><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo></mrow></mstyle><mo>=</mo><mrow><mo stretchy="false">|</mo><mi>x</mi><mo stretchy="false">|</mo></mrow><mo>=</mo><mrow><mo>{</mo><mtable columnalign="left left"><mtr><mtd><mi>x</mi></mtd><mtd><mtext>if</mtext><mspace width="1em"></mspace><mi>x</mi><mo>></mo><mn>0</mn></mtd></mtr><mtr><mtd><mi>0</mi></mtd><mtd><mtext>if</mtext><mspace width="1em"></mspace><mi>x</mi><mo>=</mo><mn>0</mn></mtd></mtr><mtr><mtd><mo>-</mo><mi>x</mi></mtd><mtd><mtext>if</mtext><mspace width="1em"></mspace><mi>x</mi><mo><</mo><mn>0</mn></mtd></mtr></mtable></mrow></mrow><annotation encoding="TeX">{\mathtt{\operatorname{Math.abs}(x)}} = {|x|} = \begin{cases} x & \text{if} \quad x \geq 0 \\ -x & \text{if} \quad x < 0 \end{cases} </annotation></semantics></math></p> + +<div>{{EmbedInteractiveExample("pages/js/math-abs.html")}}</div> + + + +<h2 id="구문">구문</h2> + +<pre class="syntaxbox">Math.abs(<var>x</var>)</pre> + +<h3 id="매개변수">매개변수</h3> + +<dl> + <dt><code>x</code></dt> + <dd>숫자.</dd> +</dl> + +<h3 id="반환_값">반환 값</h3> + +<p>주어진 숫자의 절대값.</p> + +<h2 id="설명">설명</h2> + +<p><code>abs()</code>는 <code>Math</code>의 정적 메서드이므로, 사용자가 생성한 <code>Math</code> 객체의 메서드로 호출할 수 없고 항상 <code>Math.abs()</code>를 사용해야 합니다. (<code>Math</code>는 생성자가 아닙니다)</p> + +<h2 id="예제">예제</h2> + +<h3 id="Math.abs()의_작동_방식"><code>Math.abs()</code>의 작동 방식</h3> + +<p>빈 객체, 하나 이상의 요소를 가진 배열, 숫자가 아닌 문자열, {{jsxref("undefined")}}나 빈 매개변수를 받으면 {{jsxref("NaN")}}을 반환합니다. {{jsxref("null")}}, 빈 문자열이나 빈 배열을 제공하면 0을 반환합니다.</p> + +<pre class="brush: js" dir="rtl">Math.abs('-1'); // 1 +Math.abs(-2); // 2 +Math.abs(null); // 0 +Math.abs(''); // 0 +Math.abs([]); // 0 +Math.abs([2]); // 2 +Math.abs([1,2]); // NaN +Math.abs({}); // NaN +Math.abs('string'); // NaN +Math.abs(); // NaN +</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('ES1')}}</td> + <td>{{Spec2('ES1')}}</td> + <td>Initial definition. Implemented in JavaScript 1.0.</td> + </tr> + <tr> + <td>{{SpecName('ES5.1', '#sec-15.8.2.1', 'Math.abs')}}</td> + <td>{{Spec2('ES5.1')}}</td> + <td> </td> + </tr> + <tr> + <td>{{SpecName('ES6', '#sec-math.abs', 'Math.abs')}}</td> + <td>{{Spec2('ES6')}}</td> + <td> </td> + </tr> + <tr> + <td>{{SpecName('ESDraft', '#sec-math.abs', 'Math.abs')}}</td> + <td>{{Spec2('ESDraft')}}</td> + <td> </td> + </tr> + </tbody> +</table> + +<h2 id="브라우저_호환성">브라우저 호환성</h2> + + + +<p>{{Compat("javascript.builtins.Math.abs")}}</p> + +<h2 id="같이_보기">같이 보기</h2> + +<ul> + <li>{{jsxref("Math.ceil()")}}</li> + <li>{{jsxref("Math.floor()")}}</li> + <li>{{jsxref("Math.round()")}}</li> + <li>{{jsxref("Math.sign()")}}</li> + <li>{{jsxref("Math.trunc()")}}</li> +</ul> |