diff --git a/problems/0454.四数相加II.md b/problems/0454.四数相加II.md
index ad928a3f..28db6a50 100644
--- a/problems/0454.四数相加II.md
+++ b/problems/0454.四数相加II.md
@@ -155,6 +155,38 @@ class Solution(object):
 
 Go：
 
+javaScript: 
+
+```js
+/**
+ * @param {number[]} nums1
+ * @param {number[]} nums2
+ * @param {number[]} nums3
+ * @param {number[]} nums4
+ * @return {number}
+ */
+var fourSumCount = function(nums1, nums2, nums3, nums4) {
+    const twoSumMap = new Map();
+    let count = 0;
+
+    for(const n1 of nums1) {
+        for(const n2 of nums2) {
+            const sum = n1 + n2;
+            twoSumMap.set(sum, (twoSumMap.get(sum) || 0) + 1)
+        }
+    }
+
+    for(const n3 of nums3) {
+        for(const n4 of nums4) {
+            const sum = n3 + n4;
+            count += (twoSumMap.get(0 - sum) || 0)
+        }
+    }
+
+    return count;
+};
+```
+