export default (() => {
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const getDateObj = ms => {
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const now = ms ? new Date(ms) : new Date()
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const y = now.getFullYear()
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let m = now.getMonth() + 1
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m = m > 9 ? m : '0' + m
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let d = now.getDate()
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d = d > 9 ? d : '0' + d
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return { y, m, d }
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}
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// 获取当前日期
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const getCurrentDate = ms => {
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const dateObj = getDateObj(ms)
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return '' + dateObj.y + '-' + dateObj.m + '-' + dateObj.d
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}
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//获取当前 前后N天的时间
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const getDateStr = (AddDayCount = 0) => {
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let dd = new Date()
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dd.setDate(dd.getDate() + AddDayCount)
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let y = dd.getFullYear()
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let m = (dd.getMonth() + 1) < 10 ? '0' + (dd.getMonth() + 1) : (dd.getMonth() + 1) //获取当前月份的日期，不足10补0
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let d = dd.getDate() < 10 ? '0' + dd.getDate() : dd.getDate() //获取当前几号，不足10补0
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return y + '-' + m + '-' + d
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}
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//获取某个日期 前后N天的时间
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const getDateDay2 = (time, AddDayCount) => {
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if (time) {
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let dd = new Date(time)
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dd.setDate(dd.getDate() + AddDayCount)
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let y = dd.getFullYear()
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let m = (dd.getMonth() + 1) < 10 ? '0' + (dd.getMonth() + 1) : (dd.getMonth() + 1) //获取当前月份的日期，不足10补0
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let d = dd.getDate() < 10 ? '0' + dd.getDate() : dd.getDate() //获取当前几号，不足10补0
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return y + '-' + m + '-' + d
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} else {
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return '--'
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}
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}
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//获取当前年份
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const getCurrentYear = ms => {
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const dateObj = getDateObj(ms)
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return '' + dateObj.y
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}
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// 获取当前月份
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const getCurrentMonth = ms => {
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const dateObj = getDateObj(ms)
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return '' + dateObj.y + '-' + dateObj.m
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}
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// 获取上月月份
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const getPreviousMonth = ms => {
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const dateObj = getDateObj(ms)
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const b = dateObj.m - 1 > 0
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let y = b ? dateObj.y : dateObj.y - 1
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let m = b ? dateObj.m - 1 : 12
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m = m > 9 ? m : '0' + m
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return '' + y + '-' + m
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}
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// 获取下月月份
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const getNextMonth = ms => {
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const dateObj = getDateObj(ms)
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const b = dateObj.m - (-1) != 13;
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let y = b ? dateObj.y : dateObj.y + 1
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let m = b ? dateObj.m - (-1) : 1
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m = m > 9 ? m : '0' + m
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return '' + y + '-' + m
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}
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// 格式化时间 ==> yyyy-mm-dd
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const formatDate = (value, str) => {
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if (value) {
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let date_arr = value.split(str)
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let m = date_arr[1].length == 1 && date_arr[1] < 10 ? '0' + date_arr[1] : date_arr[1]
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let d = date_arr[2].length == 1 && date_arr[2] < 10 ? '0' + date_arr[2] : date_arr[2]
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return date_arr[0] + '-' + m + '-' + d
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} else {
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return '--'
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}
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}
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const getK = value => {
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if (value) {
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let date = new Date(value)
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return date
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} else {
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let v = new Date().getTime()
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return v
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}
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}
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//转为时间戳
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const formatTime = value => {
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if (value) {
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let date = new Date(value)
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return date.getTime()
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}
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}
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const formatDate2 = (time, format = 'YY-MM-DD hh:mm:ss') => {
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if (time) {
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let date = time ? new Date(time) : new Date()
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let year = date.getFullYear(),
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month = date.getMonth() + 1, //月份是从0开始的
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day = date.getDate(),
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hour = date.getHours(),
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min = date.getMinutes(),
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sec = date.getSeconds()
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let preArr = Array.apply(null, Array(10)).map(function (elem, index) {
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return '0' + index
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}) //开个长度为10的数组 格式为 00 01 02 03
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let newTime = format
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.replace(/YY/g, year)
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.replace(/MM/g, preArr[month] || month)
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.replace(/DD/g, preArr[day] || day)
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.replace(/hh/g, preArr[hour] || hour)
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.replace(/mm/g, preArr[min] || min)
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.replace(/ss/g, preArr[sec] || sec)
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return newTime
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} else {
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return '--'
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}
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}
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const getLastDay = dateStr => {
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dateStr = dateStr || getCurrentMonth()
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let nextMonthMS = new Date(getNextMonth(new Date(dateStr).getTime())).getTime()
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return getCurrentDate(new Date(nextMonthMS - 1000 * 60 * 60 * 24).getTime())
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}
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// 对比时间
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const compareTime = (date1, date2) => {
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let d1_date1 = new Date(date1),
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d1_date2 = new Date(date2);
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let time_span1 = d1_date1.getTime(),
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time_span2 = d1_date2.getTime();
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return time_span1 - time_span2;
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}
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//格式yy-mm month1小的 month2大的
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const intervalMonth = (month1, month2) => {
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let yearMonth, number;
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let year1 = Number(getCurrentYear(month1));
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let year2 = Number(getCurrentYear(month2));
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if (year1 != year2) {
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yearMonth = (year2 - year1) * 12;
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} else {
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yearMonth = 0;
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}
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let min = Number(month1.split('-')[1]);
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let max = Number(month2.split('-')[1]);
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if (min < max) {
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number = max - min + yearMonth + 1
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} else {
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number = yearMonth - (min - max) + 1
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}
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return Number(number);
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}
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//获取季度的时间 val 例如 yyyy,1 最终结果 yyyy-mm-dd,yyyy-mm-dd
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const qurterDay = (val) => {
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let value;
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let num = val.split(',')[1]
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if (num == 1) {
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value = val.split(',')[0] + '-01-01,' + val.split(',')[0] + '-03-31'
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} else if (num == 2) {
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value = val.split(',')[0] + '-04-30,' + val.split(',')[0] + '-06-30'
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} else if (num == 3) {
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value = val.split(',')[0] + '-07-31,' + val.split(',')[0] + '-09-30'
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} else if (num == 4) {
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value = val.split(',')[0] + '-10-30,' + val.split(',')[0] + '-12-31'
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}
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return [value, num];
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}
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//获取某月最后一天
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const getMonthLastDay = (dateStr) => {
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let dateObj = getNextMonth(dateStr)
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let date = getDateDay2(dateObj + '-01', -1)
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return date
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}
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/*获取当前日期*/
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const getWeekdayTime = (value) => {
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let d = new Date(value)
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let week = d.getDay()
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let weekday = ''
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if (week == 0)
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weekday = '星期日'
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else if (week == 1)
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weekday = '星期一'
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else if (week == 2)
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weekday = '星期二'
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else if (week == 3)
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weekday = '星期三'
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else if (week == 4)
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weekday = '星期四'
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else if (week == 5)
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weekday = '星期五'
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else if (week == 6)
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weekday = '星期六'
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return weekday
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}
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//计算当前时间到今天结束时还剩多少 毫秒
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const getRestOfDayTime = () => {
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let x = new Date();
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x.setHours(0, 0, 0, 0);
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let y = new Date();
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return 24 * 3600 * 1000 - (y.getTime() - x.getTime())
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}
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/* 用于月日这种需要加前置0的方法
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* @param num 需要加0的参数 string | number
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* @return 结果 始终保证结果为字符串 string
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*/
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const paddingZero = (num) => {
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return num < 10 ? "0" + num : String(num)
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}
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return { paddingZero, getDateObj, getCurrentDate, getDateStr, getDateDay2, getCurrentYear, getCurrentMonth, getPreviousMonth, getNextMonth, formatDate, formatDate2, formatTime, getK, compareTime, getLastDay, intervalMonth, getMonthLastDay, qurterDay, getWeekdayTime, getRestOfDayTime }
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})()
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