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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:42:17 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:42:17 -0500
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+---
+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>