nodejs dirname
// Source Code: lib/path.js
// Description: The path module provides utilities for working with file and 
//              directory paths. It can be accessed using:
const path = require('path')
path.dirname('/foo/asdf/quux') 
// Returns:  '/foo/asdf'
/*	 dirname(Value <string>) Returns: <string>
  The path.dirname() method returns the directory name of a path, 
  similar to the Unix dirname command. Trailing directory separators 
  are ignored, see path.sep. A TypeError is thrown if path is not a string.   */