/**
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* 日期范围工具类
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*/
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var dateRangeUtil = (function() {
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/***
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* 获得当前时间
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*/
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this.getCurrentDate = function() {
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return new Date('2015', '07', '-1');
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};
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/***
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* 获得本周起止时间
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*/
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this.getCurrentWeek = function() {
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//起止日期数组
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var startStop = new Array();
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//获取当前时间
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var currentDate = this.getCurrentDate();
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//返回date是一周中的某一天
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var week = currentDate.getDay();
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//返回date是一个月中的某一天
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var month = currentDate.getDate();
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//一天的毫秒数
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var millisecond = 1000 * 60 * 60 * 24;
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//减去的天数
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var minusDay = week != 0 ? week - 1 : 6;
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//alert(minusDay);
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//本周 周一
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var monday = new Date(currentDate.getTime() - (minusDay * millisecond));
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//本周 周日
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var sunday = new Date(monday.getTime() + (6 * millisecond));
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//添加本周时间
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startStop.push(monday); //本周起始时间
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//添加本周最后一天时间
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startStop.push(sunday); //本周终止时间
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//返回
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return startStop;
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};
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/***
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* 获得本月的起止时间
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*/
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this.getCurrentMonth = function() {
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//起止日期数组
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var startStop = new Array();
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//获取当前时间
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var currentDate = this.getCurrentDate();
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//获得当前月份0-11
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var currentMonth = currentDate.getMonth();
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//获得当前年份4位年
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var currentYear = currentDate.getFullYear();
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//求出本月第一天
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var firstDay = new Date(currentYear, currentMonth, 1);
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//当为12月的时候年份需要加1
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//月份需要更新为0 也就是下一年的第一个月
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if (currentMonth == 11) {
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currentYear++;
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currentMonth = 0; //就为
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} else {
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//否则只是月份增加,以便求的下一月的第一天
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currentMonth++;
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}
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//一天的毫秒数
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var millisecond = 1000 * 60 * 60 * 24;
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//下月的第一天
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var nextMonthDayOne = new Date(currentYear, currentMonth, 1);
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//求出上月的最后一天
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var lastDay = new Date(nextMonthDayOne.getTime() - millisecond);
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//添加至数组中返回
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startStop.push(firstDay);
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startStop.push(lastDay);
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//返回
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return startStop;
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};
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/**
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* 得到本季度开始的月份
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* @param month 需要计算的月份
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***/
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this.getQuarterSeasonStartMonth = function(month) {
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var quarterMonthStart = 0;
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var spring = 0; //春
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var summer = 3; //夏
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var fall = 6; //秋
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var winter = 9; //冬
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//月份从0-11
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if (month < 3) {
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return spring;
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}
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if (month < 6) {
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return summer;
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}
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if (month < 9) {
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return fall;
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}
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return winter;
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};
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/**
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* 获得该月的天数
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* @param year年份
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* @param month月份
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* */
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this.getMonthDays = function(year, month) {
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//本月第一天 1-31
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var relativeDate = new Date(year, month, 1);
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//获得当前月份0-11
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var relativeMonth = relativeDate.getMonth();
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//获得当前年份4位年
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var relativeYear = relativeDate.getFullYear();
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//当为12月的时候年份需要加1
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//月份需要更新为0 也就是下一年的第一个月
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if (relativeMonth == 11) {
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relativeYear++;
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relativeMonth = 0;
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} else {
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//否则只是月份增加,以便求的下一月的第一天
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relativeMonth++;
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}
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//一天的毫秒数
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var millisecond = 1000 * 60 * 60 * 24;
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//下月的第一天
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var nextMonthDayOne = new Date(relativeYear, relativeMonth, 1);
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//返回得到上月的最后一天,也就是本月总天数
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return new Date(nextMonthDayOne.getTime() - millisecond).getDate();
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};
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/**
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* 获得本季度的起止日期
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*/
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this.getCurrentSeason = function() {
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//起止日期数组
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var startStop = new Array();
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//获取当前时间
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var currentDate = this.getCurrentDate();
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//获得当前月份0-11
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var currentMonth = currentDate.getMonth();
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//获得当前年份4位年
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var currentYear = currentDate.getFullYear();
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//获得本季度开始月份
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var quarterSeasonStartMonth = this.getQuarterSeasonStartMonth(currentMonth);
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//获得本季度结束月份
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var quarterSeasonEndMonth = quarterSeasonStartMonth + 2;
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//获得本季度开始的日期
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var quarterSeasonStartDate = new Date(currentYear, quarterSeasonStartMonth, 1);
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//获得本季度结束的日期
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var quarterSeasonEndDate = new Date(currentYear, quarterSeasonEndMonth, this.getMonthDays(
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currentYear, quarterSeasonEndMonth));
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//加入数组返回
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startStop.push(quarterSeasonStartDate);
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startStop.push(quarterSeasonEndDate);
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//返回
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return startStop;
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};
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/***
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* 得到本年的起止日期
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*
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*/
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this.getCurrentYear = function() {
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//起止日期数组
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var startStop = new Array();
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//获取当前时间
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var currentDate = this.getCurrentDate();
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//获得当前年份4位年
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var currentYear = currentDate.getFullYear();
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//本年第一天
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var currentYearFirstDate = new Date(currentYear, 0, 1);
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//本年最后一天
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var currentYearLastDate = new Date(currentYear, 11, 31);
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//添加至数组
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startStop.push(currentYearFirstDate);
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startStop.push(currentYearLastDate);
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//返回
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return startStop;
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};
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/**
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* 返回上一个月的第一天Date类型
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* @param year 年
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* @param month 月
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**/
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this.getPriorMonthFirstDay = function(year, month) {
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//年份为0代表,是本年的第一月,所以不能减
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if (month == 0) {
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month = 11; //月份为上年的最后月份
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year--; //年份减1
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return new Date(year, month, 1);
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}
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//否则,只减去月份
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month--;
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return new Date(year, month, 1);;
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};
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/**
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* 获得上一月的起止日期
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* ***/
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this.getPreviousMonth = function() {
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//起止日期数组
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var startStop = new Array();
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//获取当前时间
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var currentDate = this.getCurrentDate();
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//获得当前月份0-11
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var currentMonth = currentDate.getMonth();
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//获得当前年份4位年
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var currentYear = currentDate.getFullYear();
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//获得上一个月的第一天
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var priorMonthFirstDay = this.getPriorMonthFirstDay(currentYear, currentMonth);
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//获得上一月的最后一天
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var priorMonthLastDay = new Date(priorMonthFirstDay.getFullYear(), priorMonthFirstDay.getMonth(),
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this.getMonthDays(priorMonthFirstDay.getFullYear(), priorMonthFirstDay.getMonth()));
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//添加至数组
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startStop.push(priorMonthFirstDay);
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startStop.push(priorMonthLastDay);
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//返回
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return startStop;
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};
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/**
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* 获得上一周的起止日期
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* **/
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this.getPreviousWeek = function() {
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//起止日期数组
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var startStop = new Array();
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//获取当前时间
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var currentDate = this.getCurrentDate();
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//返回date是一周中的某一天
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var week = currentDate.getDay();
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//返回date是一个月中的某一天
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var month = currentDate.getDate();
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//一天的毫秒数
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var millisecond = 1000 * 60 * 60 * 24;
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//减去的天数
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var minusDay = week != 0 ? week - 1 : 6;
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//获得当前周的第一天
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var currentWeekDayOne = new Date(currentDate.getTime() - (millisecond * minusDay));
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//上周最后一天即本周开始的前一天
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var priorWeekLastDay = new Date(currentWeekDayOne.getTime() - millisecond);
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//上周的第一天
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var priorWeekFirstDay = new Date(priorWeekLastDay.getTime() - (millisecond * 6));
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//添加至数组
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startStop.push(priorWeekFirstDay);
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startStop.push(priorWeekLastDay);
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return startStop;
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};
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/**
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* 得到上季度的起始日期
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* year 这个年应该是运算后得到的当前本季度的年份
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* month 这个应该是运算后得到的当前季度的开始月份
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* */
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this.getPriorSeasonFirstDay = function(year, month) {
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var quarterMonthStart = 0;
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var spring = 0; //春
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var summer = 3; //夏
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var fall = 6; //秋
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var winter = 9; //冬
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//月份从0-11
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switch (month) { //季度的其实月份
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case spring:
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//如果是第一季度则应该到去年的冬季
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year--;
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month = winter;
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break;
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case summer:
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month = spring;
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break;
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case fall:
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month = summer;
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break;
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case winter:
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month = fall;
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break;
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};
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return new Date(year, month, 1);
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};
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/**
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* 得到上季度的起止日期
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* **/
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this.getPreviousSeason = function() {
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//起止日期数组
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var startStop = new Array();
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//获取当前时间
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var currentDate = this.getCurrentDate();
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//获得当前月份0-11
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var currentMonth = currentDate.getMonth();
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//获得当前年份4位年
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var currentYear = currentDate.getFullYear();
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//上季度的第一天
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var priorSeasonFirstDay = this.getPriorSeasonFirstDay(currentYear, currentMonth);
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//上季度的最后一天
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var priorSeasonLastDay = new Date(priorSeasonFirstDay.getFullYear(), priorSeasonFirstDay
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.getMonth() + 2, this.getMonthDays(priorSeasonFirstDay.getFullYear(), priorSeasonFirstDay
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.getMonth() + 2));
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//添加至数组
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startStop.push(priorSeasonFirstDay);
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startStop.push(priorSeasonLastDay);
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return startStop;
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};
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/**
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* 得到去年的起止日期
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* **/
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this.getPreviousYear = function() {
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//起止日期数组
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var startStop = new Array();
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//获取当前时间
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var currentDate = this.getCurrentDate();
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//获得当前年份4位年
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var currentYear = currentDate.getFullYear();
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currentYear--;
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var priorYearFirstDay = new Date(currentYear, 0, 1);
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var priorYearLastDay = new Date(currentYear, 11, 1);
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//添加至数组
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startStop.push(priorYearFirstDay);
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startStop.push(priorYearLastDay);
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return startStop;
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};
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/**
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* 与当前时间对比
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* @param {Object} d2
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*/
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this.getDataCompare = function(d2) {
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//当前时间
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let d1 = new Date();
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//转换为标准时间"2019/12/29 23:59:59"
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d2 = d2.replace(/-/g, "/");
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d2 = new Date(d2);
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//如果当前时间大于到期时间
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//valueOf() 函数返回指定对象的原始值,这里返回以毫秒数存储的时间值
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return d1.valueOf() > d2.valueOf()
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}
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return this;
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})();
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module.exports = dateRangeUtil;
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