Deleting a row based on date - Date values - date

Question

My query relates to this Google Form responses spreadsheet. I'm trying to adapt the script I got from here.
function cleanup() {
var sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName('Form responses 1');
var values = sheet.getDataRange().getValues();
var InAYear = (Date.now()/86400000 + 25569) + 365;
for (var i = values.length - 1; i >= 0; i--) {
if ( values[i][5] >= InAYear) {
sheet.deleteRow(i+1);
}
}
}
I'm trying to get this to compare the date in the Start Date column of the sheet with the date in a year from now and delete the row if the column entry is greater than this (ie. if the date on the sheet is more than a year in advance). However, I obviously don't understand how to get the two different dates in the same format because examining variable values when debugging shows wildly different values.

Answer 1

Try the following script code:
function cleanup() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var sheet = ss.getSheetByName('Form responses 1');
var values = sheet.getDataRange().getValues();
var today = Utilities.formatDate(new Date(), ss.getSpreadsheetTimeZone(), 'MM/dd/yyyy')
for (var i = values.length - 1; i >= 0; i--) {
if ( values[i][4] != '' && dateDiffInDays(values[i][4],today) > 365 ) {
sheet.deleteRow(i+1);
}
}
};
function dateDiffInDays(d1,d2) {
var date1 = new Date(d1);
var date2 = new Date(d2);
var timeDiff = date1.getTime() - date2.getTime();
return Math.ceil(timeDiff / (1000 * 3600 * 24));
};

Answer 2

It looks like I have it working, and sending me an email.
function cleanup(e) {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var sheet = ss.getSheetByName('Form responses 1');
var values = sheet.getDataRange().getValues();
var today = new Date();
var InAYear = new Date();
InAYear.setFullYear( today.getFullYear()+1 );
var emailaddress = "****";
var subject = "Annual Leave Request";
var message = "Annual Leave has been requested as follows:" + "\n\n";
for (var i = values.length - 1; i >= 0; i--) {
if ( values[i][4] > InAYear ) {
sheet.deleteRow(i+1);
subject = "Annual Leave Request - Rejected";
message = "The following annual leave request was rejected due to being more than one year in advance:" + "\n\n";
}
}
for(var field in e.namedValues) {
message += field + ':'
+ "\n" + e.namedValues[field].toString() + "\n\n";
}
MailApp.sendEmail(emailaddress, subject, message);
}
Thank you to Kishan, without who's help I would not have been able to get to this stage.