text: // here we're just grabbing a reference to the buildfirst module
  var app = angular.module('buildfirst');
  
  // we add a service to the module, called textService
  app.factory('textService', [
  
    // if we don't have any dependencies, then the array should just have
    // the function which puts together our service, and then returns something
    // which will be returned when the service is requested.
    // note that, in the case of services, these are singletons. so everyone who
    // uses the service will get back the same reference.
    function () {
      return function (input) {
        return input.toUpperCase();
      };
    }
  ]);
  