How to get Start Date and End Date in Last month using Javascripts? [duplicate]

Question

How to get Start Date and End Date in Last month using Javascripts.

For an example:

Today - 09/07/2013

I need to get output

Last month start date: 01/06/2013 Last month end date: 30/06/2013

Answer 1

function f()
{
var date = new Date();
var firstDay = new Date(date.getFullYear(), date.getMonth()-1, 1);
var lastDay = new Date(date.getFullYear(), date.getMonth(), 0);
alert(firstDay+"==="+lastDay);
}