Angular: Empty Fiddle

http://angularjs.org/

HTML

<div ng-controller="MyCtrl">Hello, {{name}}!</div>
<div ng-controller="MyCtrl2">
       Hello, {{name}}!
</div>

 <button ng-controller="MyCtrl" ng-click="MyCtrl.test()">click</button>

JavaScript

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

function MyCtrl($scope) {
    $scope.name = 'Name 1';
    $scope.test = function () {
        console.log('here');
        $scope.name = 'Name on click !';
    }
}

function MyCtrl2($scope) {
    $scope.name = 'Name 2';
}