从日期数组中获取日期数组

// 假设有一个日期数组
let dates = [
  new Date('2023-01-01'),
  new Date('2023-02-15'),
  new Date('2023-03-20'),
  new Date('2023-04-10'),
  new Date('2023-05-05')
];

// 按日期范围筛选
function filterByDateRange(dates, startDate, endDate) {
  return dates.filter(date => date >= startDate && date <= endDate);
}

// 使用示例
let filteredDates = filterByDateRange(dates, new Date('2023-02-01'), new Date('2023-04-30'));
console.log(filteredDates);

// 按特定日期筛选
function filterBySpecificDate(dates, targetDate) {
  return dates.filter(date => date.toDateString() === targetDate.toDateString());
}

// 使用示例
let specificDate = new Date('2023-03-20');
let specificFilteredDates = filterBySpecificDate(dates, specificDate);
console.log(specificFilteredDates);

// 按星期几筛选
function filterByWeekday(dates, weekday) {
  return dates.filter(date => date.getDay() === weekday);
}

// 使用示例（例如筛选所有的周一）
let mondays = filterByWeekday(dates, 1);
console.log(mondays);