2012-07-09 75 views
1

我有一些朋友的生日,想按如下方式把它们分开:如何检查日期是在本周内或本月内或下个月在JavaScript?

  • 生日落于本周内(在本周剩余天从当天开始)。
  • 本月内的生日(从本日起的本月的剩余日期内)。
  • 下个月内的生日。

所以我想知道如何在javascript中测试每个日期以查看它是否在本周/当前月份/下个月的剩余日期内。

N.B:说我有m/d/Y(06/29/1990)格式的日期。

感谢

+1

[解析日期](http://stackoverflow.com/questions/1576753/parse-datetime-string-in-javascript)然后使用[存取](HTTP:// WWW .quackit.com/javascript/javascript_date_and_time_functions.cfm)Date对象并比较所需的字段。 – 2012-07-09 09:23:24

回答

3

将您的日期和当前时间Date对象,并用它进行比较。一些干编码:

var now = new Date() 
if (
    (check.getFullYear() == now.getFullYear()) && 
    (check.getMonth() == now.getMonth()) && 
    (check.getDate() >= now.getDate()) 
) { 
    // remanining days in current month and today. Use > if you don't need today. 
} 

var nextMonth = now.getMonth() + 1 
var nextYear = now.getFullYear() 
if (nextMonth == 12) { 
    nextMonth = 0 
    nextYear++ 
} 
if (
    (check.getFullYear() == nextYear) && 
    (check.getMonth() == nextMonth) 
) { 
    // any day in next month. Doesn't include current month remaining days. 
} 

var now = new Date() 
now.setHours(12) 
now.setMinutes(0) 
now.setSeconds(0) 
now.setMilliseconds(0) 
var end_of_week = new Date(now.getTime() + (6 - now.getDay()) * 24*60*60*1000) 
end_of_week.setHours(23) 
end_of_week.setMinutes(59) 
end_of_week.setSeconds(59) // gee, bye-bye leap second 
if (check >=now && check <= end_of_week) { 
    // between now and end of week 
} 
+0

任何方式来检查检查日期是否在本周的剩余天数内? – flyleaf 2012-07-09 10:28:24

+0

是的。获取当前时间,添加星期几(6)和当前日期之间的差异,并使用此周末的新结束时间进行检查。 – 2012-07-09 10:29:50

+0

非常感谢!这有助于很多! – flyleaf 2012-07-09 11:32:16

0

代码使用解析日期是

var selecteddate = '07/29/1990'; 
var datestr = selecteddate.split('/'); 

var month = datestr[0]; 
var day = datestr[1]; 
var year = datestr[2]; 

var currentdate = new Date(); 
var cur_month = currentdate.getMonth() + 1; 
var cur_day =currentdate.getDate(); 
var cur_year =currentdate.getFullYear(); 

if(cur_month==month && day >= cur_day) 
{ 
alert("in this month"); 
} 

    else 
    { 
    alert("not in this month"); 
    } ​ 
+0

任何方式来获得本周? – flyleaf 2012-07-09 10:04:12

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