The npm package "parent-module" is utilized to obtain the path of the parent module in a Node.js environment. Although Node.js provides module.parent, it only offers the first cached parent, not necessarily the actual one. Hence, "parent-module" proves to be a handy tool in cases where accurate retrieval of the parent module's path is necessary.

How do you use parent-module?

Utilizing "parent-module" is quite straightforward. First, you need to install it using the npm package manager by running the command npm install parent-module. Once installed, you can import it into your JavaScript file using import parentModule from 'parent-module';. Here is a basic usage example:

// bar.js file
import parentModule from 'parent-module';

export default function bar() {
	console.log(parentModule());
	// This will log the path of the parent module
};

// foo.js file
import bar from './bar.js';

bar();
// This will call the function from bar.js and output the path.

If you desire to work with multiple module levels down, you can specify the file path as an argument to the function parentModule(filePath).

Where are the parent-module docs?

The accompanying documentation for "parent-module" can be found directly in the readme content presented above. It contains all crucial information including installation instructions, general usage, and tips for extending the usage (like combining it with read-pkg-up to read package.json of the parent module). Keep in mind that the ability to use this package effectively requires a good understanding of Node.js module mechanism and ES6 import/export syntax.