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1# @brazilian-utils/is-valid-cpf
2
3> Check if CPF is valid.
4
5See our website [http://brazilian-utils.github.io](http://brazilian-utils.github.io) for more information or the [issues](https://github.com/brazilian-utils/brazilian-utils/issues?q=is%3Aissue+is-valid-cpf) associated with this package.
6
7## Install
8
9Using NPM:
10
11```sh
12npm install @brazilian-utils/is-valid-cpf --save
13```
14
15using Yarn
16
17```sh
18yarn add @brazilian-utils/is-valid-cpf
19```
20
21or using <script> tag
22
23```html
24<script
25 type="text/javascript"
26 src="https://unpkg.com/@brazilian-utils/is-valid-cpf/dist/is-valid-cpf.umd.production.js"
27></script>
28```
29
30## Usage
31
32If you load from a **<script>** tag, you can use `isValidCpf` global. If you use **ES6** with npm, you can write `import isValidCpf from '@brazilian-utils/is-valid-cpf'`. If you use **ES5** with npm, you can write `var isValidCpf = require('@brazilian-utils/is-valid-cpf')`.
33
34```js
35isValidCpf('94389575104'); // true
36isValidCpf('943.895.751-04'); // true
37isValidCpf('93319545101'); // false
38isValidCpf('933.195.451-01'); // false
39```