diff --git a/problems/0503.下一个更大元素II.md b/problems/0503.下一个更大元素II.md
index 36e183e1..d6d3850f 100644
--- a/problems/0503.下一个更大元素II.md
+++ b/problems/0503.下一个更大元素II.md
@@ -166,20 +166,19 @@ JavaScript:
  * @return {number[]}
  */
 var nextGreaterElements = function (nums) {
-  // let map = new Map();
+  const len = nums.length;
   let stack = [];
-  let res = new Array(nums.length).fill(-1);
-  for (let i = 0; i < nums.length * 2; i++) {
+  let res = Array(len).fill(-1);
+  for (let i = 0; i < len * 2; i++) {
     while (
       stack.length &&
-      nums[i % nums.length] > nums[stack[stack.length - 1]]
+      nums[i % len] > nums[stack[stack.length - 1]]
     ) {
-      let index = stack.pop();
-      res[index] = nums[i % nums.length];
+      const index = stack.pop();
+      res[index] = nums[i % len];
     }
-    stack.push(i % nums.length);
+    stack.push(i % len);
   }
-
   return res;
 };
 ```