JS 时间 获取 当天,昨日,本周,上周,本月,上月

时间:2023-03-09 03:28:30
JS 时间 获取 当天,昨日,本周,上周,本月,上月

调用

setTimeRange (2);

function  setTimeRange (v) {
  var fmt = 'YYYY-MM-DD HH:mm';
  var now = new Date();
  var end = new Date();
  if(v == 0){

  } else if(v == 1){

  } else if(v == 2){
    //昨日
    now.setDate(now.getDate() - 1);
    end.setDate(end.getDate() - 1);
  } else if(v == 3){
    //本周
    var nowDayOfWeek = now.getDay() ; //今天本周的第几天 
    if(nowDayOfWeek == 0) {
      nowDayOfWeek = 6; //周日
    } else {
      nowDayOfWeek = nowDayOfWeek - 1;
    }
    now.setDate(now.getDate() - nowDayOfWeek);
    end.setDate(now.getDate() + 6);
  } else if(v == 4){
    //上周
    var nowDayOfWeek = now.getDay() ; //今天本周的第几天 
    if(nowDayOfWeek == 0) {
      nowDayOfWeek = 6; //周日
    } else {
      nowDayOfWeek = nowDayOfWeek - 1;
    }

    now.setDate(now.getDate() - nowDayOfWeek - 7);
    end.setDate(now.getDate() + 6);
  } else if(v == 5){
    //本月
    now.setDate(1);

    var nextMonth = end.getMonth() + 1;
    var nextMonthFirstDay=new Date(end.getFullYear(), nextMonth,1);
    var oneDay= 1000 * 60 * 60 * 24;
    end = new Date(nextMonthFirstDay-oneDay);
  } else if(v == 6){
    //上月
    var nextMonth = now.getMonth() - 1;
    now.setMonth(nextMonth);
    now.setDate(1);

    nextMonth = nextMonth + 1;
    var nextMonthFirstDay= new Date(end.getFullYear(),nextMonth, 1);
    var oneDay= 1000 * 60 * 60 * 24;
    end = new Date(nextMonthFirstDay-oneDay);
  }

  now.setHours(0);
  now.setMinutes(0);
  now.setSeconds(0);
  end.setHours(23);
  end.setMinutes(59);
  end.setSeconds(59);

  //我们在这里 输出一下
  console.log(now + ':' + end);
}