Function parseQuestion

scripts/leetcode.js:440–497

()

/* Parser function for the question and tags */
function parseQuestion() {
  var questionUrl = window.location.href;
  if (questionUrl.endsWith('/submissions/')) {
    questionUrl = questionUrl.substring(
      0,
      questionUrl.lastIndexOf('/submissions/') + 1,
    );
  }
  const questionElem = document.getElementsByClassName(
    'content__u3I1 question-content__JfgR',
  );
  const questionDescriptionElem = document.getElementsByClassName(
    'question-description__3U1T',
  );
  if (checkElem(questionElem)) {
    const qbody = questionElem[0].innerHTML;

    // Problem title.
    let qtitle = document.getElementsByClassName('css-v3d350');
    if (checkElem(qtitle)) {
      qtitle = qtitle[0].innerHTML;
    } else {
      qtitle = 'unknown-problem';
    }

    // Problem difficulty, each problem difficulty has its own class.
    const isHard = document.getElementsByClassName('css-t42afm');
    const isMedium = document.getElementsByClassName('css-dcmtd5');
    const isEasy = document.getElementsByClassName('css-14oi08n');

    if (checkElem(isEasy)) {
      difficulty = 'Easy';
    } else if (checkElem(isMedium)) {
      difficulty = 'Medium';
    } else if (checkElem(isHard)) {
      difficulty = 'Hard';
    }
    // Final formatting of the contents of the README for each problem
    const markdown = `<h2><a href="${questionUrl}">${qtitle}</a></h2><h3>${difficulty}</h3><hr>${qbody}`;
    return markdown;
  } else if (checkElem(questionDescriptionElem)) {
    let questionTitle = document.getElementsByClassName(
      'question-title',
    );
    if (checkElem(questionTitle)) {
      questionTitle = questionTitle[0].innerText;
    } else {
      questionTitle = 'unknown-problem';
    }

    const questionBody = questionDescriptionElem[0].innerHTML;
    const markdown = `<h2>${questionTitle}</h2><hr>${questionBody}`;

    return markdown;
  }

  return null;
}