From 7253dc9bc7aaec1fb8235d41ea75aa5eae1f606f Mon Sep 17 00:00:00 2001
From: "qingyi.liu" <qingyi.liu@17zuoye.com>
Date: Wed, 19 May 2021 11:08:53 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A019.=E5=88=A0=E9=99=A4?=
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---
 ...0019.删除链表的倒数第N个节点.md | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/problems/0019.删除链表的倒数第N个节点.md b/problems/0019.删除链表的倒数第N个节点.md
index 3b89dabd..920c8110 100644
--- a/problems/0019.删除链表的倒数第N个节点.md
+++ b/problems/0019.删除链表的倒数第N个节点.md
@@ -135,6 +135,28 @@ func removeNthFromEnd(head *ListNode, n int) *ListNode {
 }
 ```
 
+JavaScript:
+
+```js
+/**
+ * @param {ListNode} head
+ * @param {number} n
+ * @return {ListNode}
+ */
+var removeNthFromEnd = function(head, n) {
+    let ret = new ListNode(0, head),
+        slow = fast = ret;
+    while(n--) fast = fast.next;
+    if(!fast) return ret.next;
+    while (fast.next) {
+        fast = fast.next; 
+        slow = slow.next
+    };
+    slow.next = slow.next.next;
+    return ret.next;
+};
+```
+
 -----------------------
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