In laravel 5, jquery 3, app I use gijgo Datepicker with output format

```
        $('#check_in_datepicker').datepicker({    
            uiLibrary: 'bootstrap4',
            iconsLibrary: 'fontawesome',
            showOtherMonths: true,
            selectOtherMonths: true,
            format: 'dd mmmm, yyyy'
        });

```

and I got value in format “09 June, 2020”.
also I need to convert in javascript code date value into similar format.
What can I use for this and with which format ?

Thanks!