Remove Extension from File Name in JavaScript

Remove the file extension from a filename string:

const path = '/path/to/filename.html';
/**
 * Remove the file extension using RegExp.
 *
 * Notes:
 * - Handles strings without extensions
 * - Handles strings with multiple . characters
 * - Does not remove the extension if the string ends with a / or a .
 *
 * \.    -> Match a . character
 * [^/.] -> Match any character not in the set (Not a / or a .)
 * +     -> Match 1 or more of the preceding token
 * $     -> Match the end of the string
 */
path.replace(/\.[^/.]+$/, ''); // /path/to/filename