js计算两个日期相差的天数

js计算两个日期相差的天数

//第一种 日期 getDaysBetween(“2020-09-08 08:55:49”,“2020-10-08 08:55:49”) function getDaysBetween(dateString1,dateString2){ var startDate = Date.parse(dateString1); var endDate = Date.parse(dateString2); console.log(endDate); console.log(startDate); var days=(endDate - startDate)/(1x24x60x60x1000); alert(days);//30 return days; }

//第二种 时间戳 function selectDay(endtime){ var today=(Date.parse(new Date()))/1000;//当前时间戳 var nTime = endtime - today; var day =Math.floor(nTime/86400); return day; }