diff --git a/problems/0344.反转字符串.md b/problems/0344.反转字符串.md
index 59688e44..1b86e847 100644
--- a/problems/0344.反转字符串.md
+++ b/problems/0344.反转字符串.md
@@ -183,6 +183,26 @@ func reverseString(s []byte)  {
 }
 ```
 
+javaScript:
+
+```js
+/**
+ * @param {character[]} s
+ * @return {void} Do not return anything, modify s in-place instead.
+ */
+var reverseString = function(s) {
+    return s.reverse();
+};
+
+var reverseString = function(s) {
+    let l = -1, r = s.length;
+    while(++l < --r) [s[l], s[r]] = [s[r], s[l]];
+    return s;
+};
+```
+
+
+
 
 
 
diff --git a/problems/0541.反转字符串II.md b/problems/0541.反转字符串II.md
index 8e456322..db53caf7 100644
--- a/problems/0541.反转字符串II.md
+++ b/problems/0541.反转字符串II.md
@@ -168,6 +168,26 @@ class Solution(object):
 
 Go：
 
+javaScript: 
+
+```js
+
+/**
+ * @param {string} s
+ * @param {number} k
+ * @return {string}
+ */
+var reverseStr = function(s, k) {
+    const len = s.length;
+    let resArr = s.split(""); 
+    for(let i = 0; i < len; i += 2 * k) {
+        let l = i - 1, r = i + k > len ? len : i + k;
+        while(++l < --r) [resArr[l], resArr[r]] = [resArr[r], resArr[l]];
+    }
+    return resArr.join("");
+};
+
+```