How can I get and send to the last row submitted? - google-apps-script

Question

I've built a script that will get the issue with a form submission (D2) then output the text with the information in an email. Right now the Email address location (B2) and issue (D2) are hard coded. How can I work the code to get the email and issue from only the last row submitted?
function SendNot() {
// Fetch the Issue
var reasonRange =
SpreadsheetApp.getActiveSpreadsheet().getSheetByName("TriggerSettings").getRange("D2");
var reason = reasonRange.getValue();
// Check for Issue
if (reason==="nogps"){
// Fetch the email address
var emailRange =
SpreadsheetApp.getActiveSpreadsheet().getSheetByName("PlayerInfo").getRange("B2");
var emailAddress = emailRange.getValues();
// Send Alert Email.
var message = 'No GPS...';
var subject = 'Latest VDGL Entry...';
GmailApp.sendEmail(emailAddress, subject, message);
}
else if (reason==="nobarcode"){
// Fetch the email address
var emailRange =
SpreadsheetApp.getActiveSpreadsheet().getSheetByName("PlayerInfo").getRange("B2");
var emailAddress = emailRange.getValues();
// Send Alert Email.
var message = 'No Barcode...';
var subject = 'Latest VDGL Entry...';
GmailApp.sendEmail(emailAddress, subject, message);
}
}

Answer 1

You can calculate the last row with content using the following method:
sheet.getLastRow()
In your example you can calculate this as follows:
var d_size = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("TriggerSettings").getLastRow();
var b_size = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("PlayerInfo").getLastRow();
and then you can use d_size to grab the last row reason elements:
var reasonRange = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("TriggerSettings").getRange("D"+d_size);
and b_size to grab the last row email elements:
var emailRange = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("PlayerInfo").getRange("B"+b_size);
You can also use a different syntax to get the desired range:
Instead of getRange("D"+d_size) -> getRange(d_size,4)
Instead of getRange("B"+b_size) -> getRange(b_size,2)
References:
Sheet.getLastRow()