CODEWITHSUNDEEP
javascriptdate
ssdesign
ssdesign

Reputation: 2821

Find next 30 days (javascript)

I am looking for a javascript function which will take one date value and tell me the next 30 days values.

For example, if the current date is 5 August 2011 I would want it to list all 30 days after this:

The function basically takes care of the month days (30 or 31 or 28 etc.)

Is this something I can solve easily? Thanks a lot for your help.

Upvotes: 3

Views: 4314

Answers (4)

SLaks
SLaks

Reputation: 887453

You can use a for loop and write new Date(year, month - 1, day + i).

The Javascript Date constructor will normalize out-of-range dates to their proper values, so this will do exactly what you want.
You need to write month - 1 because months are zero-based.

Here's the code for this (JSFiddle):

var today = new Date();

var year = today.getFullYear();
var month = today.getMonth();
var date = today.getDate();

for(var i=0; i<30; i++){
      var day=new Date(year, month - 1, date + i);
      console.log(day);  
}

Upvotes: 12

Jay
Jay

Reputation: 27474

var date=new Date();
document.write(date);
document.write("<br>");

for (var x=0;x<40;++x)
{
  var d=date.getDate();
  date.setDate(d+1);
  document.write(date);
  document.write("<br>");
}

You want to use the built-in date functions. Don't try adding 24*60*60*1000 milliseconds to get to the next day. This assumes that every day is 24 hours long, which isn't true. Consider the days when daylight savings starts and ends.

Upvotes: 0

NT3RP
NT3RP

Reputation: 15370

If I'm understanding you correctly, then you might want something like this:

var nextXDays = function (days) {
    var today = new Date();
    var days = [];
    var day_length = 1000 * 60 * 60 * 24; //the length of a day in milliseconds
    for(var i = 0; i < days; i++) {
        days.push(today + day_length*i);
    }
}
var days = nextXDays(30); //return an array of the dates

Then, since you have an array of Date objects, you can display them in any format that you like.

Upvotes: 0

pixelbobby
pixelbobby

Reputation: 4440

quick answer: use Date.js. For example you could do new Date("today + 30 days"); and it will understand :] It's a pretty awesome library I use on a lot of projects for date kung-fu...

Upvotes: 2

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