From 46b5f5eb7d12b5d3eea270c25830f3d45d6a9df7 Mon Sep 17 00:00:00 2001
From: daluozha <561890199@qq.com>
Date: Tue, 27 Apr 2021 18:14:29 +0800
Subject: [PATCH] =?UTF-8?q?leetcode=20141=20=E8=A1=A5=E5=85=85js=E7=89=88?=
 =?UTF-8?q?=E8=A7=A3=E6=B3=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../链表篇/leetcode141环形链表.md                | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/animation-simulation/链表篇/leetcode141环形链表.md b/animation-simulation/链表篇/leetcode141环形链表.md
index 528d421..d157030 100644
--- a/animation-simulation/链表篇/leetcode141环形链表.md
+++ b/animation-simulation/链表篇/leetcode141环形链表.md
@@ -38,6 +38,7 @@
 
 **题目代码**
 
+Java Code:
 ```java
 public class Solution {
     public boolean hasCycle(ListNode head) {
@@ -56,3 +57,18 @@ public class Solution {
 }
 ```
 
+JS Code:
+```javascript
+var hasCycle = function(head) {
+    let fast = head;
+    let slow = head;
+    while (fast && fast.next) {
+        fast = fast.next.next;
+        slow = slow.next;
+        if (fast === slow) {
+            return true;
+        }
+    }
+    return false;
+};
+```