From a47fcbb5b6f0cf3c79b6b693a39b157fbfb878f6 Mon Sep 17 00:00:00 2001
From: songlongfei1 <songlongfei1@360.cn>
Date: Tue, 30 Apr 2024 18:16:57 +0800
Subject: [PATCH] =?UTF-8?q?docs:=20=E3=80=900055=E5=8F=B3=E6=97=8B?=
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---
 problems/kamacoder/0055.右旋字符串.md | 30 ++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/problems/kamacoder/0055.右旋字符串.md b/problems/kamacoder/0055.右旋字符串.md
index 71371860..a9f57192 100644
--- a/problems/kamacoder/0055.右旋字符串.md
+++ b/problems/kamacoder/0055.右旋字符串.md
@@ -254,7 +254,37 @@ func main(){
 
 
 ### JavaScript：
+```javascript
+// JS中字符串内不可单独修改
 
+// 右旋转
+function reverseLeftWords(s, k) {
+  const reverse = (sList, start, end) => {
+    for (let i = start, j = end; i < j; i++, j--) {
+      [sList[i], sList[j]] = [sList[j], sList[i]];
+    }
+  }
+  const sList = Array.from(s);
+  reverse(sList, 0, sList.length - k - 1);
+  reverse(sList, sList.length - k, sList.length - 1);
+  reverse(sList, 0, sList.length - 1);
+  return sList.join('');
+}
+
+// 左旋转
+var reverseLeftWords = function(s, n) {
+  const reverse = (sList, start, end) => {
+    for (let i = start, j = end; i < j; i++, j--) {
+      [sList[i], sList[j]] = [sList[j], sList[i]];
+    }
+  }
+  const sList = s.split('');
+  reverse(sList, 0, n - 1);
+  reverse(sList, n, sList.length - 1);
+  reverse(sList, 0, sList.length - 1);
+  return sList.join('');
+};
+```
 
 ### TypeScript：