Google javascript - access and rename numerical object names

Question

I imported json data into Google scripts with:

var doc = Utilities.jsonParse(txt);

I can access most objects like ...

var date = doc.data1.dateTime;
var playerName = doc.data1.playerName;
var playerId = doc.data1.playerID;
var teamNumber = doc.data2.personal.team;

The bunch of objects I need to access contains numbers as the names of the objects ...

doc.data2.personal.team.87397394.otherdata
doc.data2.personal.team.87397395.otherdata
doc.data2.personal.team.87397396.otherdata
doc.data2.personal.team.87397397.otherdata

... but when I try to read data using ...

var teamId = doc.data2.personal.team.87397394;

... I get an "Missing, before expression" error message.

I tried this ...

var teamId = doc.data2.personal.team[87397394];

... and get the command "teamId undefined" in the log.

I also related this with the same result ...

var teamId = doc.data2.personal.team[+'6803761'];

I can read the names as strings very easily using "For In", but I cannot get to the objects themselves. Every example I have found so far uses brackets, so I don't understand what to do next.

Thank! Brian

UPDATE

, . , var test "undefined"...

for(var propertyName in doc.data2.personal.team) {
    // propertyName is what you want
    // you can get the value like this: myObject[propertyName]
    Logger.log (propertyNames);
    var test = doc.data2.personal.team[propertyName];
}

, ...
87397394
87397395
87397396
87397397

, Google. , - . test undefined...

function myFunction1() {
  var txt = UrlFetchApp.fetch("http://www.hersheydigital.com/replays/replays_1.json").getContentText();
  var doc = Utilities.jsonParse(txt);
  for(var propertyName in doc.datablock_battle_result.vehicles) {
      Logger.log (propertyName);
      var test = doc.datablock_battle_result.vehicles[propertyName];
   }
}

Answer 1

, -, Utitlies.jsonParse.

var txt = UrlFetchApp.fetch("http://www.hersheydigital.com/replays/replays_1.json").getContentText();
var doc = JSON.parse(txt);
for(var propertyName in doc.datablock_battle_result.vehicles) {
    var vehicle = doc.datablock_battle_result.vehicles[propertyName];
    Logger.log('Vehicle id is ' + propertyName);
    Logger.log('Vehicle value is  ' + JSON.stringify(vehicle));
    break;
}