javascript - ajax / codeigniter out put create a new row every 4 columns -


in success part of ajax each result gets put columns.

what trying achive every 4 columns create new row.

question: on success part of ajax how make every after every 4 columns create new row?

<script type="text/javascript"> $("#select_category").on('keyup', function(e) {         $.ajax({         type: "post",         url: "<?php echo base_url('questions/displaycategories');?>",          data: {             category: $("#select_category").val()         },         datatype: "json",           success: function(json){             list = '';              list += '<div class="row">';              $.each(json['categories'], function(key, value ) {                 list += '<div class="col-sm-3">';                  list += value['name'];                  list += '</div>';                });              list += '</div>';              $('.category-box').html(list);         }     }); }); </script>

you count how many you've added , insert new row each time reaches 4:

$("#select_category").on('keyup', function(e) {   $.ajax({     type: "post",     url: "<?php echo base_url('questions/displaycategories');?>",     data: {       category: $("#select_category").val()     },     datatype: "json",     success: function(json) {       var list = '<div class="row">';       var index = 0;        $.each(json['categories'], function(key, value) {         list += '<div class="col-sm-3">';         list += value['name'];         list += '</div>';         index++;         if(index === 4) {           list += '</div><div class="row">';           index = 0;         }       });        list += '</div>';        $('.category-box').html(list);     }   }); });

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