AngularJS Example:

HTML

<link rel="stylesheet" href="http://twitter.github.com/bootstrap/assets/css/bootstrap.css">
<div ng-app>
  <h2>Todo</h2>
  <div ng-controller="TodoCtrl">
    <p ng-repeat="name in users">
      {{name.name studentIndex+1 }}
    </p>
  </div>
</div>

CSS

.done-true {
  text-decoration: line-through;
  color: grey;
}

JavaScript

function TodoCtrl($scope) {
$scope.studentIndex = 0;
      $scope.users =[
      	{name:"a",id:1},
        {name:"b", id:2},
        {name:"c", id:3}
      ];
      
}