js时间筛选

// 获取当前日期
let today = new Date();

// 设置筛选的起始日期和结束日期
let startDate = new Date(today.getFullYear(), today.getMonth(), 1); // 当月第一天
let endDate = new Date(today.getFullYear(), today.getMonth() + 1, 0); // 当月最后一天

// 假设我们有一个日期数组
let dates = [
    new Date(2023, 9, 15),
    new Date(2023, 9, 20),
    new Date(2023, 10, 5),
    new Date(2023, 10, 10)
];

// 筛选函数
function filterDatesWithinRange(dates, start, end) {
    return dates.filter(date => date >= start && date <= end);
}

// 使用筛选函数
let filteredDates = filterDatesWithinRange(dates, startDate, endDate);
console.log(filteredDates); // 输出: [2023-10-15T00:00:00.000Z, 2023-10-20T00:00:00.000Z]

function formatDate(date) {
    let d = new Date(date),
        month = '' + (d.getMonth() + 1),
        day = '' + d.getDate(),
        year = d.getFullYear();

    if (month.length < 2) month = '0' + month;
    if (day.length < 2) day = '0' + day;

    return [year, month, day].join('-');
}

let formattedDates = dates.map(formatDate);

let startDateUTC = Date.UTC(startDate.getFullYear(), startDate.getMonth(), startDate.getDate());
let endDateUTC = Date.UTC(endDate.getFullYear(), endDate.getMonth(), endDate.getDate());

function filterDatesWithinRangeUTC(dates, startUTC, endUTC) {
    return dates.filter(date => Date.UTC(date.getFullYear(), date.getMonth(), date.getDate()) >= startUTC && Date.UTC(date.getFullYear(), date.getMonth(), date.getDate()) <= endUTC);
}

let filteredDatesUTC = filterDatesWithinRangeUTC(dates, startDateUTC, endDateUTC);