如何确定周六和周日的数字是在java脚本中的两个日期之间
问题描述：
我有以下要求
我有两个日期我需要找到星期六和星期日之间会有多少
b $ b Date1：02/06/2011
Date2：02/07/2011
10天是周末
谢谢
Srini
I have requirement as follows
I have two dates i need to find how may saturdays and sundays will come in between
Date1: 02/06/2011
Date2: 02/07/2011
10 days are weekends
Thanks
Srini
答
没有循环的O（1）解决方案：
O(1) solution with no loops:
function countWeekendDays( d0, d1 )
{
var ndays = 1 + Math.round((d1.getTime()-d0.getTime())/(24*3600*1000));
var nsaturdays = Math.floor( (d0.getDay()+ndays) / 7 );
return 2*nsaturdays + (d0.getDay()==0) - (d1.getDay()==6);
}