Артем

class A {
  public static function getValSelf()
  {
  	return new self();
  }

  public static function getValStatic()
  {
  	return new static();
  }
}

Class B extends A {
}

var_dump(get_class(B::getValSelf())); // 'A'
var_dump(get_class(B::getValStatic())); // 'B'

[
  { del: 'region_id', search: 'regionName' },
  { del: 'district_id', search: 'districtName' },
  { del: 'area_id', search: 'areaName' },
  { del: 'city_id', search: 'cityName' },
  { del: 'place_id', search: 'cityName' },
  { del: 'name', search: 'streetName' },
].forEach(n => {
  if (this.tableParam[n.del]) {
    delete this.tableParam[n.del];
    this.searchForm.get(n.search).patchValue(null);
  }
});

jQuery.validator.addMethod("notEqual", function(value, element, param) {
 return this.optional(element) || value != $(param).val();
}, "Пароли не должны совпадать");

$(".myform").validate(
{
    rules: {
        password1: { required: true, notEqual: "#password2" }
    }
});