From 202e201919a1cf3d57821a0dce7d471152888fb0 Mon Sep 17 00:00:00 2001
From: "qingyi.liu" <qingyi.liu@17zuoye.com>
Date: Fri, 21 May 2021 14:05:46 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0206.=E5=8F=8D=E8=BD=AC?=
 =?UTF-8?q?=E9=93=BE=E8=A1=A8javaScript=E7=89=88=E6=9C=AC?=
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---
 problems/0206.翻转链表.md | 55 +++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/problems/0206.翻转链表.md b/problems/0206.翻转链表.md
index 886bbfcd..a6b3ca56 100644
--- a/problems/0206.翻转链表.md
+++ b/problems/0206.翻转链表.md
@@ -147,6 +147,61 @@ Python：
 
 Go：
 
+javaScript: 
+
+```js
+/**
+ * @param {ListNode} head
+ * @return {ListNode}
+ */
+
+// 双指针：
+var reverseList = function(head) {
+    if(!head || !head.next) return head;
+    let temp = null, pre = null, cur = head;
+    while(cur) {
+        temp = cur.next;
+        cur.next = pre;
+        pre = cur;
+        cur = temp;
+    }
+    // temp = cur = null;
+    return pre;
+};
+
+// 递归：
+var reverse = function(pre, head) {
+    if(!head) return pre;
+    const temp = head.next;
+    head.next = pre;
+    pre = head
+    return reverse(pre, temp);
+}
+
+var reverseList = function(head) {
+    return reverse(null, head);
+};
+
+// 递归2
+var reverse = function(head) {
+    if(!head || !head.next) return head;
+    // 从后往前翻
+    const pre = reverse(head.next);
+    head.next = pre.next;
+    pre.next = head;
+    return head;
+}
+
+var reverseList = function(head) {
+    let cur = head;
+    while(cur && cur.next) {
+        cur = cur.next;
+    }
+    reverse(head);
+    return cur;
+};
+```
+