在多维JavaScript对象中查找最大/最小日期

function findMaxMinDate(obj, isMax = true) {
  let maxMinDate = isMax ? -Infinity : Infinity;

  function traverse(obj) {
    for (const key in obj) {
      if (typeof obj[key] === 'object') {
        traverse(obj[key]);
      } else if (key === 'date' && typeof obj[key] === 'string') {
        const date = new Date(obj[key]);
        if (isMax ? date > maxMinDate : date < maxMinDate) {
          maxMinDate = date;
        }
      }
    }
  }

  traverse(obj);
  return maxMinDate;
}

function findMaxMinDate(obj, isMax = true) {
  const dates = [];

  function traverse(obj) {
    for (const key in obj) {
      if (typeof obj[key] === 'object') {
        traverse(obj[key]);
      } else if (key === 'date' && typeof obj[key] === 'string') {
        dates.push(new Date(obj[key]));
      }
    }
  }

  traverse(obj);

  return dates.reduce((maxMinDate, date) => {
    if (isMax ? date > maxMinDate : date < maxMinDate) {
      return date;
    }
    return maxMinDate;
  }, isMax ? -Infinity : Infinity);
}