I have created a custom form using Drupal form API which have an ajax callback. The ajax callback is associated with a select box, which returns a container on change the dropdown. This is running perfectly.

But now, as per current requirement, I need to change the html of a specific div along with the previous operation, which means two actions inside a single callback. Please check my code and help me understand what should I do.

public function buildForm(array $form, FormStateInterface $form_state) {        $form['store_state'] = array(         '#type' => 'select',         '#options' => $state_options,         '#ajax' => array(           'callback' => '::getStoresByState',           'wrapper' => 'state-fieldset-container',           'event' => 'change',           'progress' => array(             'type' => '',             'message' => '',           ),         ),       );            $form['select_cities_container'] = [         '#type' => 'container',         '#attributes' => ['id' => 'state-fieldset-container'],       ];        return $form;          }  public function getStoresByState(array $form, FormStateInterface $form_state) {        $return_result = array();       $return_result['city_container'] = $form['select_cities_container'];        $filtered_location_table = '<div class="filtered_table_by_state"><p>I WANT TO CHANGE THE TEXT HERE</p>';        $filtered_location_table .= '</div>';        $response = new AjaxResponse();       $response->addCommand(         new HtmlCommand(           '.filtered_store_location',           '<div class="filtered_location_table">'.$filtered_location_table.'</div>'),       );        $return_result['filtered_store_locations_by_state'] = $response;        return $return_result;      } 

As the function returns $form['select_cities_container'] & $response at once, so I tried to wrap them in an array and return it at the end, but unfortunately only $form['select_cities_container'] returns and $response is not returned.

If I perform single action on this callback, it’s working fine.

public function getStoresByState(array $form, FormStateInterface $form_state) {        return $form['select_cities_container']; } 

It’s also working

public function getStoresByState(array $form, FormStateInterface $form_state) {   $filtered_location_table = '<div class="filtered_table_by_state"><p>I WANT TO CHANGE THE TEXT HERE</p>';    $filtered_location_table .= '</div>';    $response = new AjaxResponse();   $response->addCommand(     new HtmlCommand(       '.filtered_store_location',       '<div class="filtered_location_table">'.$filtered_location_table.'</div>'),   );    return $response; } 

How will I return both at once?