how to check a date is within current week or current month or next month in javascript?

Question

I have some friends' birthdays and want to separate them as follows :

birthdays which fall within the current week (within remaining days of current week starting from current day).
birthdays which fall within the current month (within remaining days of current month starting from current day).
birthdays which fall within the next month.

So all I want to know how to test each date in javascript to see if it falls within the remaining days of the current week/current month/next month.

N.B: say I have those dates in m/d/Y(06/29/1990) format.

Thanks

[Parse the date](http://stackoverflow.com/questions/1576753/parse-datetime-string-in-javascript) then use the [accessors](http://www.quackit.com/javascript/javascript_date_and_time_functions.cfm) of the Date object and compare the desired fields. — Denys Séguret, Jul 09 '12 at 09:23

Oleg V. Volkov · Accepted Answer · 2012-07-09T10:38:57.197

8

Convert your date and current time to Date object and use it for comparison. Some dry coding:

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
}

edited Jul 09 '12 at 10:38

answered Jul 09 '12 at 10:18

Oleg V. Volkov

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any way to check if the checking date falls within remaining days of current week? – flyleaf Jul 09 '12 at 10:28
Yeah. Get current time, add difference between max day of week (6) and current day and use this new end of week time for check. – Oleg V. Volkov Jul 09 '12 at 10:29
I think you need to use this for determining the start date of the week: ` var date = new Date(); var now = new Date(date.getFullYear(), date.getMonth(), date.getDate() - date.getDay()); ` – Keith Holliday Nov 17 '16 at 16:36

score 2 · Answer 2 · answered Jul 09 '12 at 10:00

the code Using the Parse Date is

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");
   }

how to check a date is within current week or current month or next month in javascript?

2 Answers2

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