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+---
+title: 'RangeError: precision is out of range'
+slug: Web/JavaScript/Reference/Errors/Precision_range
+translation_of: Web/JavaScript/Reference/Errors/Precision_range
+---
+<div>{{jsSidebar("Errors")}}</div>
+
+<h2 id="메시지">메시지</h2>
+
+<pre class="syntaxbox">RangeError: precision {0} out of range (Firefox)
+RangeError: toExponential() argument must be between 0 and 20 (Chrome)
+RangeError: toFixed() digits argument must be between 0 and 20 (Chrome)
+RangeError: toPrecision() argument must be between 1 and 21 (Chrome)
+</pre>
+
+<h2 id="에러_형식">에러 형식</h2>
+
+<p>{{jsxref("RangeError")}}</p>
+
+<h2 id="무엇이_잘못되었을까">무엇이 잘못되었을까?</h2>
+
+<p>아래의 메소드들 중 하나에서,  실행 인자(argument)가 정확도의 범위를 벗어났습니다. :</p>
+
+<ul>
+ <li>{{jsxref("Number.prototype.toExponential()")}}</li>
+ <li>{{jsxref("Number.prototype.toFixed()")}}</li>
+ <li>{{jsxref("Number.prototype.toPrecision()")}}</li>
+</ul>
+
+<p>이 메소드들에게 허용된 범위는 0부터 20 (또는 21)까지 입니다. 하지만, ECMAScript 스펙은 아래의 범위까지 확장하여 허용하고 있습니다.</p>
+
+<table class="standard-table">
+ <thead>
+  <tr>
+   <th scope="col">Method</th>
+   <th scope="col">Firefox (SpiderMonkey)</th>
+   <th scope="col">Chrome, Opera (V8)</th>
+  </tr>
+ </thead>
+ <tbody>
+  <tr>
+   <td>{{jsxref("Number.prototype.toExponential()")}}</td>
+   <td>0 부터 100</td>
+   <td>0 부터 20</td>
+  </tr>
+  <tr>
+   <td>{{jsxref("Number.prototype.toFixed()")}}</td>
+   <td>-20 부터 100</td>
+   <td>0 부터 20</td>
+  </tr>
+  <tr>
+   <td>{{jsxref("Number.prototype.toPrecision()")}}</td>
+   <td>1 부터 100</td>
+   <td>1 부터 21</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="예">예</h2>
+
+<h3 id="유효하지_않은_경우">유효하지 않은 경우</h3>
+
+<pre class="brush: js example-bad">77.1234.toExponential(-1);  // RangeError
+77.1234.toExponential(101); // RangeError
+
+2.34.toFixed(-100);         // RangeError
+2.34.toFixed(1001);         // RangeError
+
+1234.5.toPrecision(-1);     // RangeError
+1234.5.toPrecision(101);    // RangeError
+</pre>
+
+<h3 id="유효한_경우">유효한 경우</h3>
+
+<pre class="brush: js example-good">77.1234.toExponential(4); // 7.7123e+1
+77.1234.toExponential(2); // 7.71e+1
+
+2.34.toFixed(1); // 2.3
+2.35.toFixed(1); // 2.4 (note that it rounds up in this case)
+
+5.123456.toPrecision(5); // 5.1235
+5.123456.toPrecision(2); // 5.1
+5.123456.toPrecision(1); // 5
+</pre>
+
+<h2 id="참조">참조</h2>
+
+<ul>
+ <li>{{jsxref("Number.prototype.toExponential()")}}</li>
+ <li>{{jsxref("Number.prototype.toFixed()")}}</li>
+ <li>{{jsxref("Number.prototype.toPrecision()")}}</li>
+</ul>