jquery - How to find number of dates falls under 1 month or 3 months or 6 months in javascript? -

i got confusion number of dates falls under 1 month or 3 months or 6 months or particular time period. how that?. date format mm/dd/yyyy. date range added dynamically. 1 please out solve this.

for ex

• all (10)
• last month(6)
• last 3 months(3)
• last 6 months(1)
• 12/25/2015 - 01/25/2016 (7)

and ex array is

var array = ['01/05/2016','01/08/2016','01/09/2016','01/10/2016','01/11/2016','01/12/2016','12/25/2015','11/25/2015','11/29/2015','10/25/2015']; var currentdate = '02/04/2016'; 

i have loop array , create li elements. first li element should tell total count of array , next li element should tell count of dates falls in last 1 month , next li should tell last 3 month. how segregate inside loop.

you can finding out difference between dates

var array = ['01/05/2016', '01/08/2016', '01/09/2016', '01/10/2016', '01/11/2016', '01/12/2016', '12/25/2015', '11/25/2015', '11/29/2015', '10/25/2015', '9/25/2015'];  var currentdate = '02/04/2016';  $('#range').change(function() {      var range = this.value;      //get range value      var result = array.filter(function(v) {        // filter arry using filter()        var diff = math.abs((new date(currentdate)).gettime() - (new date(v)).gettime());        // parse 2 dates , difference between them        return math.ceil(diff / (1000 * 3600 * 24)) <= range * 30;        // number of days difference , compare range      });      $('#list').html('count : ' + result.length + '<br> array : <pre> ' + json.stringify(result, null, 3) + '</pre>')        // showing result in json format    }).change()    // triggering change event

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>  <select id="range">    <option value=1>1</option>    <option value=2>2</option>    <option value=3>3</option>    <option value=6>6</option>  </select>  <div id="list"></div>

helpful question : get difference between 2 dates in javascript?

update : per need can similar this

var array = ['01/05/2016', '01/08/2016', '01/09/2016', '01/10/2016', '01/11/2016', '01/12/2016', '12/25/2015', '11/25/2015', '11/29/2015', '10/25/2015'];  var currentdate = '02/04/2016';  $('#range').change(function() {      var range = this.value;      //get range value      var result = range == 1 ? getres(range).length : getres(range).length - getres($(':selected', this).prev().val()).length;      // getting count diff if range greater 1      $('#list').html('count : ' + result);      // showing result in json format    }).change()    // triggering change event    function getres(range) {    return array.filter(function(v) {      // filter arry using filter()      var diff = math.abs((new date(currentdate)).gettime() - (new date(v)).gettime());      // parse 2 dates , difference between them      return math.ceil(diff / (1000 * 3600 * 24)) <= range * 30;      // number of days difference , compare range    });  }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>  <select id="range">    <option value=1>1</option>    <option value=3>3</option>    <option value=6>6</option>  </select>  <div id="list"></div>