AngularJS ui-router

HTML

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.10/angular.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.2.0/angular-ui-router.js"></script>
<div ui-view class="top">
    myPage
</div>

JavaScript

/* myApp module */
var myApp = angular.module('myApp', ['ui.router'])
    .config(['$stateProvider', function ($stateProvider) {

    $stateProvider.state('home', {
			url: "",
      template: '<div></div>',
    });
}])

.controller('anotherController', function ($scope, $state) {
  let vm = this;
  this.someFunction = function(myParam){
    console.log(myParam);
  }
}) 
     
.controller('MyAppCtrl', function ($scope, $state, anotherController) {
  anotherController.someFunction('hello controller 2');
});