2 files changed, 135 insertions, 13 deletions
diff --git a/files/ko/web/javascript/reference/errors/bad_radix/index.html b/files/ko/web/javascript/reference/errors/bad_radix/index.html
index 3ea98bf1eb..15db6a1c7c 100644
--- a/files/ko/web/javascript/reference/errors/bad_radix/index.html
+++ b/files/ko/web/javascript/reference/errors/bad_radix/index.html
@@ -1,25 +1,44 @@
 ---
 title: 'RangeError: radix must be an integer'
 slug: Web/JavaScript/Reference/Errors/Bad_radix
+tags:
+- Error
+- Errors
+- JavaScript
+- RangeError
 translation_of: Web/JavaScript/Reference/Errors/Bad_radix
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
-<h2 id="메시지">메시지</h2>
+<p>JavaScript 예외 "radix must be an integer at least 2 and no greater than 36"는
+    {{jsxref("Number.prototype.toString()")}} 또는 {{jsxref("BigInt.prototype.toString()")}}
+    메서드의 선택적 매개 변수가 지정된 경우 2에서 36 사이여야 합니다.
+</p>
 
-<pre class="syntaxbox">RangeError: radix must be an integer at least 2 and no greater than 36 (Firefox)
-RangeError: toString() radix argument must be between 2 and 36 (Chrome)
-</pre>
+<h2 id="Message">메시지</h2>
+
+<pre class="brush: js">RangeError: invalid argument (Edge)
+    RangeError: radix must be an integer at least 2 and no greater than 36 (Firefox)
+    RangeError: toString() radix argument must be between 2 and 36 (Chrome)
+    </pre>
 
-<h2 id="에러_형식">에러 형식</h2>
+<h2 id="Error_type">에러 형식</h2>
 
 <p>{{jsxref("RangeError")}}</p>
 
-<h2 id="무엇이_잘못되었을까">무엇이 잘못되었을까?</h2>
+<h2 id="What_went_wrong">무엇이 잘못되었을까?</h2>
 
-<p>{{jsxref("Number.prototype.toString()")}} 메소드는 선택적 파라메터인 <code>radix</code>(기수:진수를 지정하는 값)와 함께 사용되어 왔습니다. 이 파라메터는 반드시 수의 값을 나타내는 진법의 2와 36 사이로 지정된 정수(숫자)여야 합니다. </p>
+<p>{{jsxref("Number.prototype.toString()")}} 또는 
+    {{jsxref("BigInt.prototype.toString()")}} 
+    메서드는 선택적 파라미터인 <code>radix</code>(기수: 진수를 지정하는 값)와 함게 사용되어 왔습니다.
+    이 파라미터는 반드시 수의 값을 나타내는 진법 2와 36 사이로 지정된 정수(숫자)여야 합니다.
+</p>
 
-<p>왜 36으로 제한이 되었을까요? <code>radix</code>는 digit(밑기수) 알파벳 글자로 사용되는 10보다는 큽니다. 그렇기 때문에, <code>radix</code>는 라틴 알파벳 26글자를 가졌을 때, 36보다 클 수 없습니다.  </p>
+<p>
+    이 매개 변수의 값이 36으로 제한된 이유는 무엇일까요?
+    10보다 큰 기수는 알파벳 문자를 숫자로 사용하기 때문입니다.
+    따라서 기수는 36을 초과할 수 없습니다. 라틴 알파벳(영어와 다른 많은 언어에서 사용됨)은 26자뿐이기 때문입니다.
+</p>
 
 <p>보통 아래의 <code>radix</code> 중 하나를 사용하게 될 것입니다.</p>
 
@@ -30,9 +49,9 @@ RangeError: toString() radix argument must be between 2 and 36 (Chrome)
  <li>16 for <a href="https://en.wikipedia.org/wiki/Hexadecimal">hexadecimal numbers</a> (16진수).</li>
 </ul>
 
-<h2 id="예">예</h2>
+<h2 id="Examples">예제</h2>
 
-<h3 id="허용되지_않는_경우">허용되지 않는 경우</h3>
+<h3 id="Invalid_cases">허용되지 않는 경우</h3>
 
 <pre class="brush: js example-bad">(42).toString(0);
 (42).toString(1);
@@ -42,7 +61,7 @@ RangeError: toString() radix argument must be between 2 and 36 (Chrome)
 (12071989).toString("MM-dd-yyyy");
 </pre>
 
-<h3 id="허용된_경우">허용된 경우</h3>
+<h3 id="Valid_cases">허용된 경우</h3>
 
 <pre class="brush: js example-good">(42).toString(2);     // "101010" (2진수)
 (13).toString(8);     // "15"     (8진수)
@@ -50,8 +69,9 @@ RangeError: toString() radix argument must be between 2 and 36 (Chrome)
 (100000).toString(16) // "186a0"  (16진수)
 </pre>
 
-<h2 id="참조">참조</h2>
+<h2 id="See_also">또 다른 내용</h2>
 
 <ul>
- <li>{{jsxref("Number.prototype.toString()")}}</li>
+  <li>{{jsxref("Number.prototype.toString()")}}</li>
+  <li>{{jsxref("BigInt.prototype.toString()")}}</li>
 </ul>
diff --git a/files/ko/web/javascript/reference/global_objects/bigint/tostring/index.html b/files/ko/web/javascript/reference/global_objects/bigint/tostring/index.html
new file mode 100644
index 0000000000..3b04cd9f84
--- /dev/null
+++ b/files/ko/web/javascript/reference/global_objects/bigint/tostring/index.html
@@ -0,0 +1,102 @@
+---
+title: BigInt.prototype.toString()
+slug: Web/JavaScript/Reference/Global_Objects/BigInt/toString
+tags:
+- BigInt
+- JavaScript
+- Method
+- Prototype
+- toString()
+browser-compat: javascript.builtins.BigInt.toString
+---
+<div>{{JSRef}}</div>
+
+<p>The <strong><code>toString()</code></strong> method returns a string representing the
+  specified {{jsxref("BigInt")}} object. The trailing "n" is not part of the string.</p>
+
+<div>{{EmbedInteractiveExample("pages/js/bigint-tostring.html")}}</div>
+
+<h2 id="Syntax">Syntax</h2>
+
+<pre class="brush: js">
+toString()
+toString(radix)
+</pre>
+
+<h3 id="Parameters">Parameters</h3>
+
+<dl>
+  <dt><code>radix</code>{{optional_inline}}</dt>
+  <dd>Optional. An integer in the range 2 through 36 specifying the base to use for
+    representing numeric values.</dd>
+</dl>
+
+<h3 id="Return_value">Return value</h3>
+
+<p>A string representing the specified {{jsxref("BigInt")}} object.</p>
+
+<h3 id="Exceptions">Exceptions</h3>
+
+<dl>
+  <dt>{{jsxref("RangeError")}}</dt>
+  <dd>If <code>toString()</code> is given a radix less than 2 or greater than 36, a
+    {{jsxref("RangeError")}} is thrown.</dd>
+</dl>
+
+<h2 id="Description">Description</h2>
+
+<p>The {{jsxref("BigInt")}} object overrides the <code>toString()</code> method of the
+  {{jsxref("Object")}} object; it does not inherit
+  {{jsxref("Object.prototype.toString()")}}. For {{jsxref( "BigInt")}} objects, the
+  <code>toString()</code> method returns a string representation of the object in the
+  specified radix.</p>
+
+<p>The <code>toString()</code> method parses its first argument, and attempts to return a
+  string representation in the specified radix (base). For radixes above 10, the letters
+  of the alphabet indicate numerals greater than 9. For example, for hexadecimal numbers
+  (base 16) <code>a</code> through <code>f</code> are used.</p>
+
+<p>If the <code>radix</code> is not specified, the preferred radix is assumed to be 10.
+</p>
+
+<p>If the <code>bigIntObj</code> is negative, the sign is preserved. This is the case even
+  if the radix is 2; the string returned is the positive binary representation of the
+  <code>bigIntObj</code> preceded by a <code>-</code> sign, <strong>not</strong> the two's
+  complement of the <code>bigIntObj</code>.</p>
+
+<h2 id="Examples">Examples</h2>
+
+<h3 id="Using_toString">Using <code>toString</code></h3>
+
+<pre class="brush: js">17n.toString();      // '17'
+66n.toString(2);     // '1000010'
+254n.toString(16);   // 'fe'
+-10n.toString(2);    // -1010'
+-0xffn.toString(2);  // '-11111111'
+</pre>
+
+<h3 id="Negative-zero_BigInt">Negative-zero <code>BigInt</code></h3>
+
+<p>There is no negative-zero <code>BigInt</code> as there are no negative zeros in
+  integers. <code>-0.0</code> is an IEEE floating-point concept that only appears in the
+  JavaScript {{jsxref("Number")}} type.</p>
+
+<pre class="brush: js">(-0n).toString();      // '0'
+BigInt(-0).toString(); // '0'</pre>
+
+<h2 id="Specifications">Specifications</h2>
+
+{{Specifications}}
+
+<h2 id="Browser_compatibility">Browser compatibility</h2>
+
+
+<p>{{Compat}}</p>
+
+<h2 id="See_also">See also</h2>
+
+<ul>
+  <li>{{jsxref("BigInt.prototype.toLocaleString()")}}</li>
+  <li>{{jsxref("BigInt.prototype.valueOf()")}}</li>
+  <li>{{jsxref("Number.prototype.toString()")}}</li>
+</ul>