function() {
var products= [];
 var comma="";
var productsCheckout = {{transactionProducts}}; /*variável com data Layer de array de
produtos*/
for (var i = 0; i < productsCheckout.length; i++)
{
 if(i>0)
 comma = ",";
 products += comma + '{"pid":"' + productsCheckout[i]['id'] + '","pn":"' +
productsCheckout[i]['name'] + '","pc":"'+ productsCheckout[i]['category'] + '","up":"' +
productsCheckout[i]['price'].toFixed(2) +'","qty":"' + productsCheckout[i]['quantity'] +'","pd":"0"}';

}
return '['+products+']';
}