diff --git a/pages/tutorials/ts-for-js-programmers.html b/pages/tutorials/ts-for-js-programmers.html
index cec884de..85bce1c1 100644
--- a/pages/tutorials/ts-for-js-programmers.html
+++ b/pages/tutorials/ts-for-js-programmers.html
@@ -1270,8 +1270,7 @@ <h3 id="&#xC720;&#xB2C8;&#xC5B8;-unions">&#xC720;&#xB2C8;&#xC5B8; (Unions)</h3>
 
 printPoint(color);
 </code></pre><p>&#xB9C8;&#xC9C0;&#xB9C9;&#xC73C;&#xB85C;, &#xC815;&#xD655;&#xD558;&#xAC8C; &#xB9C8;&#xBB34;&#xB9AC; &#xC9D3;&#xAE30; &#xC704;&#xD574;, &#xAD6C;&#xC870;&#xC801;&#xC73C;&#xB85C; &#xD074;&#xB798;&#xC2A4;&#xC640; &#xAC1D;&#xCCB4;&#xAC00; &#xD615;&#xD0DC;&#xB97C; &#xB530;&#xB974;&#xB294; &#xBC29;&#xBC95;&#xC5D0;&#xB294; &#xCC28;&#xC774;&#xAC00; &#xC5C6;&#xC2B5;&#xB2C8;&#xB2E4;:</p>
-<pre><code>// @errors: 2345
-interface Point {
+<pre><code>interface Point {
   x: number;
   y: number;
 }
diff --git a/pages/tutorials/ts-for-js-programmers.md b/pages/tutorials/ts-for-js-programmers.md
index 77a6bb2d..c5abde77 100644
--- a/pages/tutorials/ts-for-js-programmers.md
+++ b/pages/tutorials/ts-for-js-programmers.md
@@ -263,7 +263,6 @@ printPoint(color);
 마지막으로, 정확하게 마무리 짓기 위해, 구조적으로 클래스와 객체가 형태를 따르는 방법에는 차이가 없습니다:
 
 ```
-// @errors: 2345
 interface Point {
   x: number;
   y: number;