Getting the previous month's first date from current date in JavaScript

Question

Please anyone share the code to find the previous month's first date from current date in JavaScript. For example, if the current date is 25th Jan 2009, I should get 1st Dec 2008 as result.

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Duplicate of: http://stackoverflow.com/questions/605113/find-first-day-of-previous-month-in-javascript

Answer 1

Check this link:

http://blog.dansnetwork.com/2008/09/18/javascript-date-object-adding-and-subtracting-months/

EDIT: I have drummed up an example:

Date.prototype.SubtractMonth = function(numberOfMonths) {
var d = this;
d.setMonth(d.getMonth() - numberOfMonths);
d.setDate(1);
return d;
}

$(document).ready(function() {
    var d = new Date();
    alert(d.SubtractMonth(1));
});

Andrew

Answer 2

Straightforward enough, with the date methods:

  var x = new Date();

  with(x)
  {
    setMonth(getMonth()-1);
    setDate(1);
  }

Answer 3

Check this :

http://stackoverflow.com/questions/605113/find-first-day-of-previous-month-in-javascript