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 {