Working Material

view page    < div   class = "form-group" >      < label   class = "control-label col-md-3 col-sm-3 col-xs-12" > Product         Code < span   class = "required" > * </ span >      </ label >      < div   class = "col-md-6 col-sm-6 col-xs-12" >          < input   type = "text"   name = "pro_code"   id = "productcode"   onkeyup = " checkProductCode ();"   required              class = "form-control col-md-7 col-xs-12"   placeholder = 'Product Code'   value = " <?php   echo   $pro_code ;  ? > " >          < div   id = "productcode_response"   style = " color:red;" ></ div >      </ div >   </ div > controller     // checkProductCode    function   checkProductCode (){        $productcode  =   $this -> input -> post ( 'productcode' );   

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 );