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http://www.stevepolitodesign.com/blog/drupal-configure-smtp-module-work-gmail-updated

Install and Configure SMTP Module

1. Install the SMTP Authentication Support module in the usual way.

2. Navigate to the configuration page admin/config/system/smtp

3. Under Turn this module on or off select On. You can leave Send mail by queue and Retry sending mail on error deselected by default, but selecting them won't affect Gmail.

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Por weight:

global-styling:
...
  css/styles.css { weight: -1 }
...
  js/scripts.js { scope: footer, weight: -6 }
...

Al header:

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{#
https://www.drupal.org/node/1906780
Beware of dump()
If you want to see all variables, but dump() results in exhausted memory because of recursion or the like, you can loop through _context to see the all the keys in it:
#}
<ol>
  {% for key, value in _context %}
    <li>{{ key }}</li>
  {% endfor %}
</ol>

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border-left: thick solid #ff0000;

.your-item {
  position: relative;
}

.your-item:after {
  content: '';
  height: 100%; //You can change this if you want smaller/bigger borders
  width: 1px;

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1. Poner el código sin la carpeta node_modules y platforms.

2. Actualizar ionic y cordova:

   $ sudo npm uninstall ionic cordova
   $ sudo npm install ionic cordova
   

3. Ejecutar dentro del proyecto:

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Para acceder al valor de un campo field_date:

$timestamp = $node->field_date->date->getTimestamp();

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Make Strings Translatable

Placeholders

@variable

Use this style of placeholder for most use-cases. Special characters in the text will be converted to HTML entities.

t('Hello @name, welcome back!', array('@name' => $user->getDisplayName()));

Output example:

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Want the 30-second version?

Generate URLs with \Drupal\Core\Url

// From a route.
$url = Url::fromRoute('contact.site_page');
// From a URI.
$url = Url::fromUri('http://example.com');

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<?php

// node, block, block_content, user, view, fiel, taxonomy_term, menu, menu_link_content, migration, ...
$storage = 'block';
$service = \Drupal::service('entity_type.manager')->getStorage($storage);

// LOAD
// One entity
$entity = $service->load($id);

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EntityQuery Conditions

The EntityQuery class can be loaded manually (if you know the entity type):

$query = \Drupal::service('entity_type.manager')->getStorage('node')->getQuery();

public function condition($field, $value = NULL, $operator = NULL, $langcode = NULL);

The $operator can take one of several options see core/lib/Drupal/Core/Entity/Query/QueryInterface.php::condition