From 78c1d0209fc1bfcba73d52294b4b11db09f27f8a Mon Sep 17 00:00:00 2001
From: Jack <965555169@qq.com>
Date: Thu, 5 Aug 2021 12:31:25 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0121.=E4=B9=B0=E5=8D=96?=
 =?UTF-8?q?=E8=82=A1=E7=A5=A8=E7=9A=84=E6=9C=80=E4=BD=B3=E6=97=B6=E6=9C=BA?=
 =?UTF-8?q?-JavaScript=E7=89=88?=
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---
 problems/0121.买卖股票的最佳时机.md | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/problems/0121.买卖股票的最佳时机.md b/problems/0121.买卖股票的最佳时机.md
index 259fff34..8ad6c8c6 100644
--- a/problems/0121.买卖股票的最佳时机.md
+++ b/problems/0121.买卖股票的最佳时机.md
@@ -313,6 +313,26 @@ func max(a,b int)int {
 }
 ```
 
+JavaScript：
+
+```javascript
+const maxProfit = prices => {
+    const len = prices.length;
+    // 创建dp数组
+    const dp = new Array(len).fill([0, 0]);
+    // dp数组初始化
+    dp[0] = [-prices[0], 0];
+    for (let i = 1; i < len; i++) {
+        // 更新dp[i]
+        dp[i] = [
+            Math.max(dp[i - 1][0], -prices[i]),
+            Math.max(dp[i - 1][1], prices[i] + dp[i - 1][0]),
+        ];
+    }
+    return dp[len - 1][1];
+};
+```
+