Total value count Retrieve ajax

On click function  

<input type="button" class="clerk" onclick='nosalecount()' data-toggle="modal"
data-target="#clark" value="Clark">

AJAX CODE

// **************************************************************

        // * no sale count *

        // **************************************************************

        function nosalecount(){

            $.ajax({

                type: "POST",

                url: "<?php echo base_url('Sell/nosalecount');?>",

                success: function (data) {

                    let obj = JSON.parse(data);

                //  console.log(obj.nosale);

                    $("#nosalecount").text(obj.nosale);

                    $("#salecount").text(obj.sale);

                },

                error: function () {

                    alert('Error occured');

                }

            });

        }

controller

// ********************************************************

    // * noSale count *

    // ********************************************************

    function nosalecount(){

        $clarkid=$this->session->userdata('ClarkAccessId');

        $terminalid= $this->session->userdata('terminalnumber');

        /* No sale count */     

        $this->db->select("*");

        $query = $this->db->get_where('nosale', array('date' => date('Y-m-d'),
'clarkid'=>$clarkid, 'terminalid'=>$terminalid));

        $result = $query->result_array();

        $count = count($result);

        /* Sale count query */

        $this->db->select("*");

        $query2 = $this->db->get_where('sell', array('date' => date('Y-m-d'),
'clark_id'=>$clarkid, 'terminalnumber'=>$terminalid));

        $result2 = $query2->result_array();

        $salecount = count($result2);

        //return $count;

        if(empty($count)){

            return false;

        }

        else{

         print '{"nosale":'.$count.', "sale":'.$salecount.'}';

        }

    }