Invalid character in name - buildObject

[oscar-developer]

Hi Leonidas,
I have a problem when trying to convert a json to xml.
the "Invoice" tag needs to be an array since I will dynamically add more of the same elements.

var JsonFact = {
'Invoice':[{
'$' : {
"listURI":"urn:pe:gob:sunat:cpe:see:catalogos:catalogo01",
"listName":"Tipo de Documento",
"listAgencyName": "PE:SUNAT",
"listID":"0101"
}
},
"cbc:item":"1",
"cbc:item":"2",
"cbc:item":"3"
]
};
//JsonFact =JsonFact.Invoice.push({"cbc:item":"4"});
//JsonFact =JsonFact.Invoice.push({"cbc:item":"5"});

var builder = new xml2js.Builder( { headless: false, renderOpts: { pretty: true } ,xmldec: {version: "1.0"}});
var xml = builder.buildObject(JsonFact);
then throw the message "Invalid character in name --> $ "

Could you please guide me how to solve it, thanks Leonidas.

[oscar-developer]

Solucionado, primero se agregan todas las etiquetas que se necesitan y se agregan poco a poco las vacias[].

[satyajitnayk]

Translation: Solved, first all the tags that are needed are added and the empty ones[] are added little by little.