Gravity Forms: How to restrict dates within the date picker1 min read

Instructions from Gravity Forms here:

https://docs.gravityforms.com/gform_datepicker_options_pre_init/#5-disable-specific-dates

Add to the HEAD section of your website within the script. Examples below:

<script>
gform.addFilter( 'gform_datepicker_options_pre_init', function( optionsObj, formId, fieldId ) {
    if ( formId == 3 && fieldId == 7 ) {
        optionsObj.firstDay = 1;
        optionsObj.beforeShowDay = jQuery.datepicker.noWeekends;
    }
    return optionsObj;
});
	
	gform.addFilter( 'gform_datepicker_options_pre_init', function( optionsObj, formId, fieldId ) {
    if ( formId == 3 && fieldId == 7 ) {
        var disabledDays = ['09/15/2021', '09/16/2021', '09/17/2021'];
        optionsObj.beforeShowDay = function(date) {
            var checkdate = jQuery.datepicker.formatDate('mm/dd/yy', date);
            return [disabledDays.indexOf(checkdate) == -1];
        };
    }
    return optionsObj;
});
	
</script>