Try it Yourself - AngularJS ng_todo

<!DOCTYPE html>
<html>
<script src="/lib/angular-1.4.8.min.js"></script>
<body ng-app="myApp" ng-controller="todoCtrl">

<br>

<p><button ng-click="remove()">Remove marked</button></p>

$scope.todoAdd = function() {
        $scope.todoList.push({todoText:$scope.todoInput, done:false});
        $scope.todoInput = "";
    };

$scope.remove = function() {
        var oldList = $scope.todoList;
        $scope.todoList = [];
        angular.forEach(oldList, function(x) {
            if (!x.done) $scope.todoList.push(x);
        });
    };
});
</script>

</body>
</html>