We will explain how to disable certain dates in bootstrap Datepicker.

Here, in this example, we will disable some days using the pre -ShowDay parameter. to see the example below.

#index.html

<!DOCTYPE html>
<html>
    <head>
        <title>Rathorji PHP Tutorial</title>
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet">
        <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.js"></script>
        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>  
        <link href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.7.1/css/bootstrap-datepicker.min.css" rel="stylesheet"/>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.7.1/js/bootstrap-datepicker.min.js"></script>
    </head>
    <body>
        <div class="container">
            <div class="row">
                <div class='col-lg-6'>
                    <div class="form-group">
                        <div class='input-group date' id='datepicker1'>
                            <input type='text' class="form-control" />
                            <span class="input-group-addon">
                                <span class="glyphicon glyphicon-calendar"></span>
                            </span>
                        </div>
                    </div>
                </div>
                <script type="text/javascript">
                    $(function() {
                        var disableSpecificDates = ["11-12-2020", "11-12-2020", "15-12-2020", "17-12-2020"];
                        $('#datepicker1').datepicker({
                            format: 'mm/dd/yyyy',
                            beforeShowDay: function(date) {
                                dmy = date.getDate() + "-" + (date.getMonth() + 1) + "-" + date.getFullYear();
                                if (disableSpecificDates.indexOf(dmy) != -1) {
                                    return false;
                                }
                                else {
                                    return true;
                                }
                            }
                        });
                        $('#datepicker1').datepicker("setDate", new Date());
                    });
                </script>
            </div>
        </div>
    </body>
</html>