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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/isfinite/index.html | |
parent | 1109132f09d75da9a28b649c7677bb6ce07c40c0 (diff) | |
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diff --git a/files/ko/web/javascript/reference/global_objects/isfinite/index.html b/files/ko/web/javascript/reference/global_objects/isfinite/index.html new file mode 100644 index 0000000000..834389e2f7 --- /dev/null +++ b/files/ko/web/javascript/reference/global_objects/isfinite/index.html @@ -0,0 +1,84 @@ +--- +title: isFinite() +slug: Web/JavaScript/Reference/Global_Objects/isFinite +tags: + - JavaScript + - Reference +translation_of: Web/JavaScript/Reference/Global_Objects/isFinite +--- +<div>{{jsSidebar("Objects")}}</div> + +<p><code><strong>isFinite()</strong></code> 전역 함수는 주어진 값이 유한수인지 판별합니다. 필요한 경우 매개변수를 먼저 숫자로 변환합니다.</p> + +<div>{{EmbedInteractiveExample("pages/js/globalprops-isfinite.html")}}</div> + + + +<h2 id="구문">구문</h2> + +<pre class="syntaxbox notranslate">isFinite(<em>testValue</em>)</pre> + +<h3 id="매개변수">매개변수</h3> + +<dl> + <dt><code>testValue</code></dt> + <dd>유한한지 판별할 값.</dd> +</dl> + +<h3 id="반환_값">반환 값</h3> + +<p><code>testValue</code>가 양 또는 음의 {{jsxref("Infinity")}}, {{jsxref("NaN")}}, 또는 {{jsxref("undefined")}}면 <code>false</code>, 아니면 <code>true</code>.</p> + +<h2 id="설명">설명</h2> + +<p><code>isFinite()</code>은 최상위 함수로 어떤 객체와도 연결되지 않았습니다.</p> + +<p>숫자가 유한수인지 판별하기 위해 <code>isFinite()</code>을 사용할 수 있습니다. <code>isFinite()</code>은 주어진 수를 검사해 그 값이 <code>NaN</code>, 양의 무한대, 또는 음의 무한대이면 <code>false</code>를 반환합니다. 그렇지 않으면 <code>true</code>를 반환합니다.</p> + +<h2 id="예제">예제</h2> + +<h3 id="isFinite_사용하기"><code>isFinite()</code> 사용하기</h3> + +<pre class="brush: js notranslate">isFinite(Infinity); // false +isFinite(NaN); // false +isFinite(-Infinity); // false + +isFinite(0); // true +isFinite(2e64); // true +isFinite(910); // true + +isFinite(null); // true, would've been false with the + // more robust Number.isFinite(null) + +isFinite('0'); // true, would've been false with the + // more robust Number.isFinite("0")</pre> + +<h2 id="명세">명세</h2> + +<table class="standard-table"> + <thead> + <tr> + <th scope="col">Specification</th> + </tr> + </thead> + <tbody> + <tr> + <td>{{SpecName('ESDraft', '#sec-isfinite-number', 'isFinite')}}</td> + </tr> + </tbody> +</table> + +<h2 id="브라우저_호환성">브라우저 호환성</h2> + + + +<p>{{Compat("javascript.builtins.isFinite")}}</p> + +<h2 id="같이_보기">같이 보기</h2> + +<ul> + <li>{{jsxref("Number.isFinite()")}}</li> + <li>{{jsxref("Number.NaN()")}}</li> + <li>{{jsxref("Number.POSITIVE_INFINITY")}}</li> + <li>{{jsxref("Number.NEGATIVE_INFINITY")}}</li> +</ul> |