udemyVideoPausewithK.js

  // ==UserScript==
// @name         Udemy Video Pause with K
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Control Udemy videos with the K key instead of space.
// @author       Ángel
// @match        https://www.udemy.com/*
// @grant        none
// ==/UserScript==

(function () {
    'use strict';

    document.addEventListener('keydown', function (event) {
        if (event.key === 'k') { // Detect the key 'K'
            const video = document.querySelector('video'); // Search for the video element
            if (video) {
                video.paused ? video.play() : video.pause(); // Pause or play the video
            }
        }
    });
})();