Why the "if" gets ignored in this Google apps script? - dictionary

Question

I am trying to get a spreadsheet to update a calendar on my Google account, but I am struggling to get the if condition on the code below to work. When I run inseritoNelCal the debug says that it is unspecified even though the spreadsheet has actually data in each row/column.
var IN_CAL = new String('INSERITO');
function dallaTabellaAlCalendario() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var sheet = ss.getActiveSheet();
var startRow = 2; // First row of data to process
var numRows = 2; // Number of rows to process
// Fetch the range of cells A2:B3
var dataRange = sheet.getRange(startRow, 1, numRows, 3);
// Fetch values for each row in the Range.
var data = dataRange.getValues();
for (var i = 0; i < data.length; ++i) {
var row = data[i];
var title = row[0]; // First column
var startTime = new Date(row[1]); // 2nd column
var endTime = new Date(row[02]); // 3rd column
var description = row[3]; // 4th column
var location = row[4]; // 5th column
var guests = row[5]; // 6th column
var inseritoNelCal = row[6]; // 7th column
}
if (inseritoNelCal != IN_CAL){
var calendar CalendarApp.getCalendarById("mycalendarID").createEvent(title, startTime, endTime, {Descrizione: description, Luogo: location, Allievi: guests, Inserito: inseritoNelCal });
sheet.getRange(startRow, 7).setValue(IN_CAL);
}
}