A utility to parse a udemy course and collect each sub-section for each course section

udemy-course-section-parser.js

(function() {
  const COURSE_SECTION_SELECTOR = ".accordion-panel-module--panel--Eb0it.section--panel--qYPjj";
  const COURSE_SECTION_LABEL_SELECTOR = ".section--section-title--svpHP";
  const COURSE_SECTION_TOGGLER_SELECTOR = ".accordion-panel-module--panel-toggler--WUiNu.accordion-panel-module--outer-panel-toggler--Pxwxc";
  const COURSE_SECTION_SUB_SECTION_LABEL_SELECTOR = ".section--item-title--EWIuI";
  
  const courseSections = document.querySelectorAll(COURSE_SECTION_SELECTOR);
  const courseSectionArr = [...courseSections];

  const courseSectionLabels = courseSectionArr.map((courseSection) => {
    const isCourseSectionOpened = courseSection.firstChild.dataset.checked === "checked";
    
    if (!isCourseSectionOpened) {
	  const courseSectionToggler = courseSection.querySelector(COURSE_SECTION_TOGGLER_SELECTOR);
    
      if (courseSectionToggler) {
        courseSectionToggler.click();
      }
    }
    
    const courseSubSections = courseSection.querySelectorAll(COURSE_SECTION_SUB_SECTION_LABEL_SELECTOR);
    
    const courseSubSectionsArr = [...courseSubSections];
    const courseSubSectionLabels = courseSubSectionsArr.map((label) => label.innerText);
    const courseSectionTitle = courseSection.querySelector(COURSE_SECTION_LABEL_SELECTOR).innerText;
    
    return {
      courseSectionTitle,
      courseSubSectionLabels	
    };
  });

  return courseSectionLabels;
})()