preprocess

/**
* Implements hook_preprocess_HOOK().
*/
function MYMODULE_preprocess_html(&$variables) {
 $variables['head_title']['title'] = 'new title';
}

/**
* Implements hook_preprocess_HOOK().
*/
function MYMODULE_preprocess_file_video(&$variables) {
 if (isset($variables['files'][0]['source_attributes'])) {
   /** 

/**
* Implements hook_preprocess_HOOK().
*/
function MYTHEME_preprocess_html(&$variables) {
 /** @var \Drupal\node\Entity\NodeType $node_type_entity */
 $node_type_entity = \Drupal::routeMatch()->getParameter('node_type');
 if ($node_type_entit

/**
* Implements hook_preprocess_HOOK().
*/
function hram_preprocess_html(&$variables) {
  $variables['html_attributes']->addClass('h-100');
}

/**
* Implements hook_preprocess_HOOK().
*/
function EXAMPLE_preprocess_page_title(&$variables) {
 $current_path = \Drupal::service('path.current')->getPath();
 if ($current_path == '/user/login') {
   $variables['title'] = '

/**
* Implements template_preprocess_textarea().
*/
function EXAMPLE_preprocess_textarea(&$variables) {
 if (isset($variables['attributes']['id'])) {
   if ($variables['attributes'][

/**
* Implements template_preprocess_form_element_label().
*/
function EXAMPLE_preprocess_form_element_label(&$variables) {
  if (isset($variables["element"]["#id"])) {
    if ($variables["elem

/**
* Implements template_preprocess_input().
*/
function EXAMPLE_preprocess_input(&$variables) {
  if (isset($variables['attributes']['id'])) {
    if ($variables['attributes'][

/**
*  Implements template_preprocess_fieldset()
*/
function EXAMPLE_preprocess_fieldset(&$variables) {
  if (isset($variables['element']['#id'])) {
    $id = $variables['element']['#id']