javascript - AngularJS view not updating on model change

Question

i'm trying to figure out how Angular works and am having trouble getting my view to update when the model changes..

HTML

<div ng-app="test">  
        <p ng-controller="TestCtrl">  
            {{testValue}}  
        </p>  
    </div>

JS

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

    app.controller('TestCtrl', function ($scope) {
       $scope.testValue = 0;

        setInterval(function() {
            console.log($scope.testValue++);
        }, 500);
    });

http://jsfiddle.net/N2G7z/

any ideas?

Answer 1

As Ajay beniwal mentioned above you need to use Apply to start digestion.

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

app.controller('TestCtrl', function ($scope) {
   $scope.testValue = 0;

    setInterval(function() {
        console.log($scope.testValue++);
        $scope.$apply() 
    }, 500);
});