AutoNextUdemy.user.js

// ==UserScript==
// @name         AutoNextUdemy
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://www.udemy.com/course/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=udemy.com
// @grant        none
// ==/UserScript==

document.body.addEventListener('click', e => {
    if (e.target.type === 'radio') {
        requestIdleCallback(() => document.querySelector('[data-purpose="go-to-next-question"]').click())
    } else if (e.target.type === 'checkbox') {
        const m = document.querySelector('#question-prompt').textContent.match(/(?<=select )\d|\d(?=を選択)|\d(?=つ選択してください)/)
        if (m && e.target.closest('form').querySelectorAll('input[type=checkbox]:checked').length === parseInt(m[0], 10)) {
            requestIdleCallback(() => document.querySelector('[data-purpose="go-to-next-question"]').click())
        }
    }
})