Double data id into button

[nolbyte]

Hi! I want to add more data id into button such as
<button data-id="user_id" data-loan="loan_id">
With this jquery code
`
$('.btnpopup').click(function() {
var userId = $(this).data('user_id');
var loanId = $(this).data('loan_id');
$.ajax({
url: 'post.php',
type: 'post',
data: {
userId: userId,
loanId: loanId
},
success: function(response) {
$('.modal-body').html(response);
$('#addkelas').modal('show');
if (!response) {
alert('kosong');
return;
}
}

                });
            });

`

No result after send to post.php. Any help would be appreciate. Thank you