Try this,
{{for CommentListClass}}
<div class="item">
<div class="item-content">
<h3>{{:Author}}</h3>
</div>
</div>
{{/for}}
Use data like,
[{
"CommentListClass": [{
"Author": "Test",
"CommentText": "Really goo"
}, {
"Author": "joshar1",
"CommentText": "My picture"
}]
}];
Test on jsviews