36 lines
860 B
Markdown
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

---
id: bd7123c9c441eddfaeb5bdef
title: 理解布尔值
challengeType: 1
videoUrl: 'https://scrimba.com/c/c9Me8t4'
forumTopicId: 301176
---
# --description--
另一种数据类型是<dfn>布尔</dfn>Boolean`布尔`值要么是`true`要么是`false`。它非常像电路开关,`true`是 “开”,`false`是 “关”。这两种状态是互斥的。
**注意**
`布尔值`是不带引号的,`"true"``"false"``字符串`而不是`布尔值`,在 JavaScript 中也没有特殊含义。
# --instructions--
修改`welcomeToBooleans`函数,让它返回`true`而不是`false`
# --hints--
`welcomeToBooleans()`函数应该返回一个布尔值 (true/false)。
```js
assert(typeof welcomeToBooleans() === 'boolean');
```
`welcomeToBooleans()`应该返回 true。
```js
assert(welcomeToBooleans() === true);
```
# --solutions--