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October 24, 2020 19:54
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Turn Udemy's review pages into flashcards by skipping the test, opening devtools, then pasting this in console
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| function addCSSRule(selector, rules, index) { | |
| if (!window.the_added_sheet) { | |
| style = document.createElement('style') | |
| style.appendChild(document.createTextNode("")) | |
| document.head.appendChild(style) | |
| if ("insertRule" in sheet) { | |
| sheet.insertRule(selector + "{" + rules + "}", index); | |
| } else if ("addRule" in sheet) { | |
| sheet.addRule(selector, rules, index); | |
| } | |
| window.the_added_sheet = style.sheet | |
| sheet = the_added_sheet; | |
| } | |
| } | |
| addCSSRule('div[class*="--correct--"]', "background-color: transparent !important;") | |
| addCSSRule('[data-completed=true] div[class*="--correct--"]', "background-color: #e9f7f1 !important;"); | |
| addCSSRule( | |
| 'div[class*="--correct--"] div[class^="mc-quiz-answer--correctness--"], [data-hidden-explanation=true], span[class^="mc-quiz-question--skipped--"]', | |
| "display: none;" | |
| ); | |
| addCSSRule( | |
| '[data-completed=true] div[class*="--correct--"] div[class^="mc-quiz-answer--correctness--"]', | |
| "display: inline !important;" | |
| ); | |
| function bumpTotal() { | |
| document.querySelectorAll('[class*="detailed-result-panel--question-container--"]').forEach((q, i) => { | |
| correct = true | |
| q.querySelectorAll('div[class*="--correct--"] input').forEach((ip) => { | |
| if (!ip.checked) { | |
| correct = false | |
| } | |
| }) | |
| quiz_total[i] = correct | |
| nqs = Object.keys(quiz_total).length; | |
| correct = Object.values(quiz_total).filter(t => t).length; | |
| document.querySelector('.final-total').innerHTML = `Total correct: <b>${correct}</b> / ${nqs}` | |
| }) | |
| } | |
| function revealFactory(question) { | |
| return () => { | |
| bumpTotal(); | |
| question.querySelector('[class^="mc-quiz-question--explanation--"]').removeAttribute('data-hidden-explanation'); | |
| question.setAttribute('data-completed', true); | |
| } | |
| } | |
| function setupQuiz() { | |
| document.querySelectorAll('[class*="detailed-result-panel--question-container--"]').forEach((q, i) => { | |
| q.removeAttribute("data-completed"); | |
| q.querySelector('[class^="mc-quiz-question--explanation--"]').setAttribute('data-hidden-explanation', true) | |
| q.querySelectorAll('input[name="answer"]').forEach((input) => {input.disabled = false; input.checked = false; input.onclick = revealFactory(q)}) | |
| }) | |
| window.quiz_total = {} | |
| if (document.querySelector('.final-total')) { | |
| total = document.querySelector(".final-total"); | |
| } else { | |
| total = document.createElement('div') | |
| total.className = 'final-total' | |
| document.querySelector('[class*="footer__center"').appendChild(total); | |
| } | |
| bumpTotal() | |
| } | |
| setupQuiz() |
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