From 391410a383f452c292a045e068b138295d4af7da Mon Sep 17 00:00:00 2001
From: Steve2020 <841532108@qq.com>
Date: Thu, 13 Jan 2022 15:29:20 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A00202.=E5=BF=AB=E4=B9=90?=
 =?UTF-8?q?=E6=95=B0.md=E5=A2=9E=E5=8A=A0typescript=E7=89=88=E6=9C=AC?=
MIME-Version: 1.0
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---
 problems/0202.快乐数.md | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/problems/0202.快乐数.md b/problems/0202.快乐数.md
index 2d678151..f0a46a40 100644
--- a/problems/0202.快乐数.md
+++ b/problems/0202.快乐数.md
@@ -232,7 +232,27 @@ var isHappy = function(n) {
 };
 ```
 
+TypeScript:
+
+```typescript
+function isHappy(n: number): boolean {
+    // Utils
+    // 计算val各位的平方和
+    function calcSum(val: number): number {
+        return String(val).split("").reduce((pre, cur) => (pre + Number(cur) * Number(cur)), 0);
+    }
+
+    let storeSet: Set<number> = new Set();
+    while (n !== 1 && !storeSet.has(n)) {
+        storeSet.add(n);
+        n = calcSum(n);
+    }
+    return n === 1;
+};
+```
+
 Swift：
+
 ```swift
 // number 每个位置上的数字的平方和
 func getSum(_ number: Int) -> Int {