jQuery and Json push issue - json

Question

I am okay with using push({}) to create my javascript array, however one of my fields has a list of its own. So I'm having trouble doing the push() on level down.
As follows, tradeDetails array is defined and the EXTENSIONS field has a collection of values. How do I handle this one below.
function TradeDetailsToJson(xml) {
var tradeDetails = [];
var tradeId = $(xml).find("tradeHeader tradeId").text();
var tradeDate = $(xml).find("tradeHeader tradeDate").text();
var tradeType = $(xml).find("tradeHeader tradeType").text();
var counterparty = $(xml).find("tradeHeader counterparty").text();
var internalUnit = $(xml).find("tradeHeader internalUnit").text();
var buySell = $(xml).find("tradeHeader buySell").text();
var status = $(xml).find("tradeHeader status").text();
tradeDetails.push({
"tradeId": tradeId,
"tradeDate": tradeDate,
"tradeType": tradeType,
"counterparty": counterparty,
"internalUnit": internalUnit,
"buySell": buySell,
"status": status,
"**extensions**":[]
});
// NOW I'D LIKE TO PUSH MY EXTENSIONS !!
var extName = ""
var extValue = "";
$(xml).find("extensions extension").each(function () {
extName = $(this).find("name").text();
extValue = $(this).find("value").text();
//tradeDetails[extensions].push({ "name": name, "value": value }); ??????
});
}
thank you in advanced.
Bob

Answer 1

Use push on the extensions property again?
tradeDetails.push({
"tradeId": tradeId,
"tradeDate": tradeDate,
"tradeType": tradeType,
"counterparty": counterparty,
"internalUnit": internalUnit,
"buySell": buySell,
"status": status,
"extensions":[]
});
tradeDetails.extensions.push({ "name": name, "value": value });
With what you have tried, you need to wrap extensions which is the key of the object tradeDetails, in quotes.
So change
tradeDetails[extensions].push({ "name": name, "value": value });
to
tradeDetails["extensions"].push({ "name": name, "value": value });