How set a variable after ajax call?

[pierluigi]

How I can set "price" variable after ajax call? here the code:

var price;
var idProd = data.prodotto_id;

var cb = function (o,s,r){

price = Ext.util.JSON.decode(r.responseText).price;
console.log(price);
};
Ext.Ajax.request({
url : "index.php",
params : {
m : "Prodotti",
a : 'prod-price-byquantity',
idProd : idProd,
quantity: qta
},
callback : cb,
scope : this
});


console.log(price);
In the last console.log(price) I see price as undefined

[PhiLho]

I don't think it is an Ext GWT 3 question. If no moderator moves this topic, you should ask it in a proper section.