set-date-plus-one.php

add_action( 'wpforms_wp_footer_end', function() { ?>
    <script type="text/javascript">
    ;(function($) {
        
      if( $('#wpforms-101')) {

        $("#wpforms-101-field_5").on("input", function(){
          var the_date = new Date($(this).val());
          the_date.setDate(the_date.getDate() + 1);
          $('#wpforms-740-field_25').val( the_date.toLocaleDateString('en-US')  );
        });

      }
		
    })(jQuery);
    </script>
<?php }, 30 );