ajax checkbox filtering in codeigniter

I try to filter data in my view using select box. I'm using codeigniter and I want to filter it using ajax. I already test the code and look at the console, and ajax post return result. The problem is, i don't know how to display the result in my view. I mean, how i suppose to write in 'success: function(){}'

this is my ajax

  <script>
$(document).ready(function() {
$("#selectBerdasar").change(function() {
    var key = $(this).val();
    console.log(key);
    var postdata = {key: key};
    var url = '<?php echo site_url('produk/filter/GetFilterJson');?>';
    $.post(url, postdata, function(result) {
        console.log(result);
        if (result) {
            var obj = JSON.parse(result);
            $('col-item').empty();
            $.each(obj, function(key, line) {

             });
        } else {

        }
    });
});

});

this is my view

<div class="row">

  <div class="col-md-4 pull-right">
    <select class="form-control" id="selectBerdasar">
     <!--  <option>Produk Terbaru</option>
      <option>Produk Terpopuler</option> -->
      <option value="termahal">Harga Termahal</option>
      <option value="termurah">Harga Termurah</option>
      <option value="alfabet">Alfabet A-Z</option>
    </select>
  </div>
</div>


  <div class="row">
    <?php foreach ($produk as $data) {?>
  <div class="col-xs-6 col-sm-4 col-md-4">
    <div class="col-item">
<a href="<?php echo base_url('produk/item/detail/' . $data['id_produk']);?>">
<div class="photo">
    <img src="<?php echo base_url();?>asset/user/img/produk/<?php echo $data['gambar'];?>" class="img-responsive" alt="" />
</div>
<div class="info">
    <div class="row">
        <div class="price col-md-12">
        <h5><?php echo $data['nama_produk'];?></h5>
        <h5 class="price-text-color">Rp.<?=number_format($data['harga_produk'], 0, ',', '.')?></h5>
    </div>

</div>
    <div class="clearfix">
    </div>
</div>
</a>
</div>
  </div>
   <?php }

?>

 </div>

I just don't know how to display the result in my view.