Edit in JSFiddle

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

myApp.controller('MyCtrl', function ($scope) {

    document.getElementById('btn').onclick = function (e) {
            $scope.name = "Button clicked";
    }
});
<div ng-controller="MyCtrl">
    <button id="btn" type="button">Click me</button>
    <div>{{name}}</div>
</div>

              

External resources loaded into this fiddle: