From a811e9aa69e421fe788d9f5923bfdb07b1083e00 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=BA=AA=E9=A3=9E?= <fei.jay@etank.cn>
Date: Tue, 18 May 2021 12:30:08 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E2=80=9C20.=E6=9C=89?=
 =?UTF-8?q?=E6=95=88=E7=9A=84=E6=8B=AC=E5=8F=B7=E2=80=9DJavascript?=
 =?UTF-8?q?=E7=89=88=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/0020.有效的括号.md | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/problems/0020.有效的括号.md b/problems/0020.有效的括号.md
index 98cc7cd8..6c630f39 100644
--- a/problems/0020.有效的括号.md
+++ b/problems/0020.有效的括号.md
@@ -247,6 +247,32 @@ def is_valid(strs)
 end
 ```
 
+Javascript:
+```javascript
+var isValid = function (s) {
+  const stack = [];
+  for (let i = 0; i < s.length; i++) {
+    let c = s[i];
+    switch (c) {
+      case '(':
+        stack.push(')');
+        break;
+      case '[':
+        stack.push(']');
+        break;
+      case '{':
+        stack.push('}');
+        break;
+      default:
+        if (c !== stack.pop()) {
+          return false;
+        }
+    }
+  }
+  return stack.length === 0;
+};
+```
+
 
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 * 作者微信：[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw)