From 0cdbba8b7bcaf5c35b57da4d7a8ab2df517c4508 Mon Sep 17 00:00:00 2001
From: Paik <gwbaik9717@icloud.com>
Date: Thu, 2 Jan 2025 07:58:14 +0900
Subject: [PATCH] refactor: feat: 21. Merge Two Sorted Lists

---
 merge-two-sorted-lists/gwbaik9717.js | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/merge-two-sorted-lists/gwbaik9717.js b/merge-two-sorted-lists/gwbaik9717.js
index 513778a83..e7d1ab988 100644
--- a/merge-two-sorted-lists/gwbaik9717.js
+++ b/merge-two-sorted-lists/gwbaik9717.js
@@ -30,16 +30,12 @@ var mergeTwoLists = function (list1, list2) {
     current = current.next;
   }
 
-  while (list1) {
-    current.next = new ListNode(list1.val);
-    list1 = list1.next;
-    current = current.next;
+  if (list1) {
+    current.next = list1;
   }
 
-  while (list2) {
-    current.next = new ListNode(list2.val);
-    list2 = list2.next;
-    current = current.next;
+  if (list2) {
+    current.next = list2;
   }
 
   return answer.next;