prettier/website/versioned_docs/version-stable/watching-files.md

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---
id: version-stable-watching-files
title: Watching For Changes
original_id: watching-files
---
If you prefer to have prettier watch for changes from the command line you can use a package like [onchange](https://www.npmjs.com/package/onchange). For example:
```
npx onchange '**/*.js' -- npx prettier --write {{changed}}
```
or add the following to your `package.json`
```json
"scripts": {
"prettier-watch": "onchange '**/*.js' -- prettier --write {{changed}}"
},
```