Angular: Empty Fiddle

http://angularjs.org/

HTML

<div ng-controller="MyCtrl">
    <span ng-repeat="i in [0, 1, 2]">
        {{i}} <input name="asdf" ng-model="data.value1" ng-value="i"     type="radio" />
    </span>    
    <hr /> 
{{data.value1}}
</div>

JavaScript

var myApp = angular.module('myApp',[]);
    
    myApp.controller('MyCtrl', function($scope) {
        $scope.data = {};
        $scope.data.value1 = '0';
        
        $scope.$watch('data.value1', function(value) {
           alert(value);
        });
    })