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Study.com Quiz Answers

Highlights correct answers with a green background on Study.com quizes and exams

目前為 2021-04-07 提交的版本，檢視 最新版本。

  1. // ==UserScript==
  2. // @name        Study.com Quiz Answers
  3. // @namespace   https://greasyfork.org/en/users/668659-denvercoder1
  4. // @match       *://*.study.com/*
  5. // @include     https://study.com/*
  6. // @grant       none
  7. // @version     1.2
  8. // @author      Jonah Lawrence
  9. // @description Highlights correct answers with a green background on Study.com quizes and exams
  10. // ==/UserScript==
  11.  
  12. /* jshint esversion: 6 */
  13.  
  14. (function () {
  15.   const interval = setInterval(function () {
  16.     // add styling for highlighting quiz answers
  17.     // quiz answers will at this point already be highlighted since they have this attribute
  18.     const styles = '[data-correct="true"] { background: #c5ff81; box-shadow: 0 0 0 14px #c5ff81; border-radius: 2px; }';
  19.     document.getElementsByTagName("head")[0].insertAdjacentHTML("beforeend", `<style>${styles}</style>`);
  20.     // get exam container
  21.     const container = document.querySelector("#practice-exam-container");
  22.     // check if element exists (only on exam pages)
  23.     if (!container) {
  24.       // disable interval since this is not an exam
  25.       return clearInterval(interval);
  26.     }
  27.     // if this is an exam, get the controller
  28.     const controller = angular.element(container).controller();
  29.     // wait for controller to be loaded
  30.     if (controller) {
  31.       // get questions
  32.       const questions = controller.questionByQuestionInstanceId;
  33.       // highlight the answer to each question
  34.       Object.values(questions).forEach(function (x) {
  35.         const correctAnswer = document.querySelector(`li[ng-class*="${x.correctQuizQuestionOptionId}"]`);
  36.         // check that element for the correct answer exists on the page
  37.         if (correctAnswer) {
  38.           // mark answer as correct so it can be highlighted
  39.           correctAnswer.setAttribute("data-correct", "true");
  40.           // no need to keep checking
  41.           clearInterval(interval);
  42.         }
  43.       });
  44.     }
  45.   }, 500);
  46. })();