js中計算兩個日期之差

js中計算兩個日期之差

var aBgnDate, aEndDate;
           var oBgnDate, oEndDate;
           var nYlts;
           aBgnDate = strBgnDate.split('-');
           aEndDate = strEndDate.split('-');
           oBgnDate = new Date(aBgnDate[1] + '-' + aBgnDate[2] + '-' + aBgnDate[0]);
           oEndDate = new Date(aEndDate[1] + '-' + aEndDate[2] + '-' + aEndDate[0]);
           //把相差的毫秒數轉換為天數
           nYlts = parseInt(Math.abs(oEndDate - oBgnDate) / 1000 / 60 / 60 / 24);