How can I get the date format from an initialized Bootstrap datepicker?

I have the following bootstrap datepicker:

<input type="dtpicker" id="abc" name="abc" value="26-05-2022">

$('input[type="dtpicker"]').datepicker({
    format: "dd/mm/yyyy",
    clearBtn: true,
    autoclose: true,
    orientation: "bottom right",
    autoUpdateInput: true
});

How can I get "format" option by code (either Javascript or jQuery)?

Generally, how can I get datepicker options?