Another question about my ajax

Using Django Templates & Frontend
1

everything seems to be working, but I would like to add to my code confirm.
like

confirm('Realy delete'){ ...//delete record//...}

How can this be done? I’m a beginner in JavaScript :crying_cat_face:

<script>
 output='';

$('#post-form').on('submit',function(e){
event.preventDefault();
var self = this;
let _tlt=$("#idtitle").val();

let csr=$("input[name=csrfmiddlewaretoken]").val();
console.log($(this).attr('action'))
mydata={
title:_tlt,
csrfmiddlewaretoken:csr,
}

$.ajax({
url:$(this).attr('action'),
method:"POST",
data:mydata,
dataType:"json",

success:function(data){

    x=data.unit_data;
    if (data.status=='Save'){
    for(i=0;i<x.length;i++){
    output +='<tr><td class="align-middle" style="width:960px;">'+ x[i].title+'</td>'+
    '<td class="text-center align-middle">'+'<input data-sid="{{item.pk}}" value="Update" type="image" src="../static/images/update.png" style="width:25px;">'+'</td>'
    +
    '<td class="text-center align-middle">'+'<input data-sid='+x[i].id+' data-del="{{url_delete}}" class="btn-del" value="Delete" type="image" src="../static/images/del.png" style="width:28px;">'+'</td></tr>'
    }

    $('#tbody').html(output)
    output='';
    $("form")[0].reset();
    //location.reload();
    }
    if (data.status == 0){
    alert('Запись не добавлена. Возможно, такая уже есть в справочнике...');
    }
}
});
}
);
///////////////////////////////////////////////////////////////////////////////
/////////////////////////////Delete SPR
$('#tbody').on('click','.btn-del',function(e){

event.preventDefault();
let id=$(this).attr('data-sid');
alert(id);
let pth=$(this).attr('data-del');
console.log(pth);
let csr=$("input[name=csrfmiddlewaretoken]").val();

mydata={sid:id, csrfmiddlewaretoken:csr,};
mythis=$(this);
$.ajax({
url:pth,

method:'GET',
data:mydata,
dataType:"json",


success:function(data){

if(data.status =='Del'){$(mythis).closest("tr").fadeOut();}

if(data.status ==0){console.log('NO');}
},
});
});
</script>
2

If you want to render a confirmation box before deleting anything, you can use Modal like Bootstrap Modal or you can create your own Modal