---
title: Logical not
tags: math,logic
expertise: beginner
unlisted: true
cover: blog_images/succulent-7.jpg
firstSeen: 2020-05-13T11:28:26+03:00
lastUpdated: 2021-01-04T13:04:15+02:00
---

Returns the logical inverse of the given value.

- Use the logical not (`!`) operator to return the inverse of the given value.

```js
const not = a => !a;
```

```js
not(true); // false
not(false); // true
```