acha-framework/src/frontend/core/scripts/services/translate-service.js

is a modular framework on both client (angular.js) and server (node.js) side, it provides security, orm, ioc, obfuscation and ...

(function ($, angular, underscore, window, document, undefined) {
  'use strict';
  angular.module('frontend.services').factory('translateService', [function () {
      return function (key) {
        return window.achasoft.i18n[key] || key;
      };
    }]);
}(jQuery, angular, _, window, document));