Parse & JS: Retrieving comment using the parentId

From the parent, we could retrieve the objectId.

Since we have this objectId in each comment object, we can retrieve the relevant comment of the Post.

<!doctype html>
<head>
        <title>My Parse App</title>
        
    <script type='text/javascript' src='http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js'></script>
        
    <script type='text/javascript' src='http://www.parsecdn.com/js/parse-1.2.17.min.js'></script>
</head>
 
<body>
 
<div>
        
    <div style='display:none' class='error'>
                <h1>Movie not found</h1>          
    </div>
            
    <div style='display:none' class='success'>
                <h1>Movie Found</h1>            
    </div>
</div>
 
<script>
    Parse.initialize('kYqz3wRHRa0GDX7viRIVXKDVNIaI0q7Fw6Ms3pv2', 'yPjRYQmwZC2MthUPrer1mU9dDpr84xVQjmEtT7fS');
    var Comment = Parse.Object.extend('Comment');
    var comment = new Comment();

    var query = new Parse.Query(Comment);

    query.equalTo('parentId', 'NBQjz5Rr2y');

    query.find(
            {
                success: function (comment) {
                    $('.success').show();
                    var content = comment[0].get('content');
                    alert(content);
                }
            }
    );

</script>
 
</body>
</html>
Try The Code
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