jQuery ajax uses confirm to confirm whether a simple instance is deleted

jQuery ajax uses confirm to confirm whether the delete button onclick="return confirm ('Confirm Delete?');"

<script type="text/javascript">
$(function(){
 
 
 $("#btnDelete").click(function(){
  //var user8ID = $.trim( $('#user8ID').val() );
  var statu = confirm("Are you sure to delete the current data?");
  if(!statu){
   return false;
  }
 var operation = '8IDdelete';
  $.ajax({
    type:'POST',
    url:'backendUserModuleMapping.php?stamp='+new Date().getTime(),
    data:'operation='+operation+'&'+$("form").eq(1).serialize(),
    success:function(msg){
      if(msg == 1){
       alert( 'Delete Successful!' );
       location.reload();
      }else{
       alert( 'Delete Failed!' );
      }      
    },
    error:function(){
      alert( 'Delete Failed!' );
    }
    
   });
  
 });
 
 });
</script>