/**
 * @file Common data layer helper.
 */

(function () {
  Drupal.behaviors.dataLayer = {

    /**
     * The language prefix list (no blank).
     *
     * @return {array}
     */
    langPrefixes: function langPrefixes() {
      var languages = Drupal.settings.dataLayer.languages,
          langList = [];

      for (var lang in languages) {
        if (languages[lang].prefix !== '') {
          langList.push(languages[lang].prefix);
        }
      }
      return langList;
    },

    /**
     * Drupal behavior.
     */
    attach: function() { return }

  };
})();