问阻止Contact Form 7刷新表单域

EN

(function( $ ) {
    'use strict';

    $(document).ready(function(){
      
      $('form.wpcf7-form input[type=submit].wpcf7-submit').on('click', function(event){
        let $form = $(this).closest('form.wpcf7-form');
        
        
        $(':input',$form).each(function(){
            let $this = $(this);
            switch(true){
              case $this.is(':checked'):
                $this.prop("defaultChecked", true);
                break;
              case $this.is('select'):
                let values = $this.val();
                if(!$.isArray(values)) values = [values];
                $('option', $this).each(function(){
                  let $option = $(this);
                  $option[0].defaultSelected= false;
                  if(values.indexOf($option.val()) >= 0){
                    $option[0].defaultSelected=true;
                  }
                });
                break;
              default:
                $this.prop("defaultValue", $this.val());
                break;
            }
        }); //input each

      }); //submit click
      
    });//document ready

})( jQuery );