bootstrap datepicker

1<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datetimepicker/4.17.47/css/bootstrap-datetimepicker-standalone.min.css" integrity="sha256-SMGbWcp5wJOVXYlZJyAXqoVWaE/vgFA5xfrH3i/jVw0=" crossorigin="anonymous" />
2<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datetimepicker/4.17.47/js/bootstrap-datetimepicker.min.js" integrity="sha256-5YmaxAwMjIpMrVlK84Y/+NjCpKnFYa8bWWBbUHSBGfU=" crossorigin="anonymous"></script>

1<input class="datepicker" data-date-format="mm/dd/yyyy">
2

1<select class="selectpicker">
2  <option>Mustard</option>
3  <option>Ketchup</option>
4  <option>Barbecue</option>
5</select>
6

1$('.datepicker').datepicker({
2    format: 'mm/dd/yyyy',
3    startDate: '-3d'
4});
5

1$('.datepicker').datepicker({
2    startDate: '-3d'
3});
4

1<div class="container">
2   <div class="row">
3      <div class='col-sm-6'>
4         <div class="form-group">
5            <div class='input-group date' id='datetimepicker1'>
6               <input type='text' class="form-control" />
7               <span class="input-group-addon">
8               <span class="glyphicon glyphicon-calendar"></span>
9               </span>
10            </div>
11         </div>
12      </div>
13      <script type="text/javascript">
14         $(function () {
15             $('#datetimepicker1').datetimepicker();
16         });
17      </script>
18   </div>
19</div>
20