I have a ToDo list and I want that all checked elements become striked when I click on the "Strike marked" button.

This is my code index.html

```
 <!DOCTYPE html>
<html>
<head>
<script src= "http://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
    <style>
        .strike {
    text-decoration: line-through;
        }
    </style>
</head>

<body ng-app="myApp" ng-controller="todoCtrl">
<h2>My Todo List</h2>

<div ng-repeat="x in todoList">
    <input type="checkbox" ng-model="x.done"><span  ng-class="" ng-bind="x.todoText"></span>
</div>

<p>

    <button ng-click="strike()">Strike marked</button>
</p>

<script src="myNoteCtrl.js"></script>
</body>
</html>

```

And this is myNoteCtrl.js

```
var app = angular.module('myApp', []); 
app.controller('todoCtrl', function($scope) {
    $scope.todoList = [{todoText:'Clean House', done:false},{todoText:'Clean House2', done:false}];

        $scope.strike = function() {
        var oldList = $scope.todoList;
        angular.forEach(oldList, function(x) {
            if (!x.done) x.todoText.class="strike";
        });
    };
});

```