Extract the chapter list from oreilly book website

GetChapterList.js

var chapter_list = document.getElementsByClassName('chapter');
var result = [];
for (var i = 0; i < chapter_list.length; ++i)
    result.push(chapter_list[i].getElementsByTagName('h3')[0].innerText);
for (var i = 0; i < result.length; ++i)
    document.write('- [ ] '+ result[i] + '<br>');

GetQuestions.js

var bodies = document.getElementsByClassName('calibre16')
var body = bodies[bodies.length - 1]
var questions = body.getElementsByClassName('calibre21')
document.write('# ' + document.getElementsByClassName('entry-title')[0].innerText + '<br><br>')
for (var i = 1; i < questions.length; i += 2) {
  var item = questions.item(i);
  var content = item.getElementsByTagName('p')[0].innerText;
  content = content.replace(/</g, '`&lt');
  content = content.replace(/>/g, '&gt`');
  document.write('> Q: ' + content + '<br>');
}