I have an AJAX order, which is executed when loading the ticket page, but when entering the first time there are no articles in the session. How is the exception Requested JSON parse failed avoided?
$(document).ready(function() {
listarDetalle();
});
function listarDetalle(){
var accion="listar";
$.ajax({
type: "POST",
url: "//localhost/gestionweb/includes/php/procesoDetalle.php",
data: { "accion":accion},
dataType:"json",
error: function(){
alert("error petición ajax");
},
success: function(data){
if (jQuery.isEmptyObject(data)){alert("sin articulos");}else{
$.each(data, function(i, item) {
var newRow =
"<tr>" +
"<td>" + item.id + "</td>" +
"<td>" + item.cantidad + "</td>" +
"<td>" + item.nombre + "</td>" +
"<td>" + item.precio + "</td>" +
"<td>" + item.total + "</td>" +
"<td><input type='radio' id='"+item.id+"' name='seleccionado' value='"+item.id+"'/></td>"+
"</tr>";
subtotal=subtotal + item.total;
iva=(subtotal *0.21);
total=subtotal - iva;
$(newRow).appendTo("#ticket tbody");
$("#sub").text(subtotal);
$("#IVA").text(iva);
$("#total").text(subtotal);
});
}} As you can see I try but I can not get it ..