test-repo/docs/watching-files.md

id, title

id	title
watching-files	Watching For Changes

You can have Prettier watch for changes from the command line by using onchange. For example:

npx onchange '**/*.js' -- npx prettier --write {{changed}}

Or add the following to your package.json:

{
  "scripts": {
    "prettier-watch": "onchange '**/*.js' -- prettier --write {{changed}}"
  }
}