Angular factory example.

var app = angular.module('plunker', []);

app.controller('MainCtrl', function($scope, myFactory) {
  $scope.name = 'World';
  console.log(myFactory)
  myFactory.setName("Plunker");
  $scope.name = myFactory.name;
  
});

app.factory('myFactory', function () {
  var factoryObj = {};
  factoryObj.name = '';
  factoryObj.setName = function (newName) {
    factoryObj.name = newName;  
  }
  return factoryObj;
});

<!DOCTYPE html>
<html ng-app="plunker">

  <head>
    <meta charset="utf-8" />
    <title>AngularJS Plunker</title>
    <script>document.write('<base href="' + document.location + '" />');</script>
    <link rel="stylesheet" href="style.css" />
    <script data-require="angular.js@1.2.x" src="https://code.angularjs.org/1.2.28/angular.js" data-semver="1.2.28"></script>
    <script src="app.js"></script>
  </head>

  <body ng-controller="MainCtrl">
    <p>Hello {{name}}!</p>
  </body>

</html>

/* Put your css in here */