---
# System prepended metadata

title: 709. To Lower Case

---

# 709. To Lower Case

## 題目概要

將字串內容轉為小寫。

```
Example 1:

Input: s = "Hello"
Output: "hello"

Example 2:

Input: s = "here"
Output: "here"

Example 3:

Input: s = "LOVELY"
Output: "lovely"
```

## 解題技巧

- 用 `str.toLowerCase()` 解。

## 程式碼

```javascript=
/**
 * @param {string} s
 * @return {string}
 */
var toLowerCase = function(s) {
    return s.toLowerCase();
};
```

![](https://i.imgur.com/8OoaQIh.png)
