js获取指定时间

moment.js格式化日期

获取当前日期:

  moment(new Date()).format("YYYY-MM-DD")

获取指定年份第一天和最后一天: 

  moment(new Date('2019')).startOf('year').format("YYYY-MM-DD")
  moment(new Date(data)).endOf('year').format("YYYY-MM-DD")
 
当年第一天和最后一天
  moment().year(moment().year()).startOf('year').format('YYYY-MM-DD')
  moment().year(moment().year()).endOf('year').format('YYYY-MM-DD')
 
指定月份第一天和最后一天
  moment(new Date('2019-5')).startOf('month').format("YYYY-MM-DD")
  moment(new Date('2019-5')).endOf('month').format("YYYY-MM-DD")
 
当月第一天和最后一天 
  moment(new Date()).startOf("month").format("YYYY-MM-DD"),

  moment(new Date()).endOf("month").format("YYYY-MM-DD")

 

 

1. 获取上周一和上周日的日期

var myDate = new Date();
            var weekDate = new Date(myDate.getTime() - 7 * 24 * 3600 * 1000);// 计算开始时间用
            var weekDate2 = new Date(myDate.getTime() - 7 * 24 * 3600 * 1000);// 计算结束时间用

            var day = weekDate.getDay();
            var time = weekDate.getDate()-day+(day===0?-6:1);

            var startDate = new Date(weekDate.setDate(time));
            var beginTime = startDate.getFullYear()+'-'+(startDate.getMonth()+1)+'-'+startDate.getDate();
            var endDate = new Date(weekDate2.setDate(time+6));
            var endTime = endDate.getFullYear()+'-'+(endDate.getMonth()+1)+'-'+endDate.getDate();

2. 获取今天之前一周日期

 // var currDate = new Date();
            // var year = currDate.getFullYear();
            // var month = currDate.getMonth();      
            // var day = currDate.getDate();

            // var oneweekdate = new Date(new Date()-7*24*3600*1000);
            // var y = oneweekdate.getFullYear();
            // var m = oneweekdate.getMonth()+1;
            // var d = oneweekdate.getDate();
            // var formatwdate = y+'-'+m+'-'+d;

3. 根据element-ui类型为月的日期选择插件获取指定月的第一天与最后一天

var beginDay = data+'-01' //第一天
            var endDate = new Date(data);
            var month=endDate.getMonth();
            var nextMonth=++month;
            var nextMonthFirstDay=new Date(endDate.getFullYear(),nextMonth,1);
            var oneDay=1000*60*60*24;
            var lastYear = new Date(nextMonthFirstDay-oneDay).getFullYear()
            var lastMonth = new Date(nextMonthFirstDay-oneDay).getMonth() + 1
            var lastDay = new Date(nextMonthFirstDay-oneDay).getDate()
            var lastTime = lastYear+'-'+lastMonth+'-'+lastDay

4. 获取上个月的第一天与最后一天

var nowdays = new Date(); 
        var year = nowdays.getFullYear();
        var month = nowdays.getMonth();
        if(month==0){
            month = 12;
            year = year-1;
        }
        if(month<10){
            month = '0'+month;
        }
        var myDate = new Date(year,month,0);
        var startDate = year+'-'+month+'-01 '; //上个月第一天
        var endDate = year+'-'+month+'-'+myDate.getDate();//上个月最后一天
posted @ 2019-12-13 15:09  番茄西红柿u  阅读(4943)  评论(0编辑  收藏  举报