Send email only when first two columns are filled in - email

Question

I currently have this script working so that when the last row is edited it sends an email with the contents of the first two columns from that row. My issue is that if info is entered into any column of the last row then a blank email gets sent. I've tried a combination of if statements to get the result I want but either end up with the script working as it currently is, or not working at all.
// This function grabs the last row of a inventory sheet and sends the updated range to a specified recipient using a onEdit trigger
function sendEmails() {
var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
// If edit is not made on "Iventory" sheet then function does not proceed
if (sheet.getSheetName() != "Inventory") return;
// Get last row of sheet
var lastRow = sheet.getLastRow();
// Get range of last row
var lastCell = sheet.getRange(lastRow, 1, 1, 2);
// Fetch values for each row in the Range.
var data = lastCell.getValues();
//empty string
var message =""
//Loop through each row and form CSV data
for (var i = 0; i < data.length; i++) {
var row = data[i];
message = message + row[0] + "-" +row[1] + "\n";
}
// Send one email with all the rows
var subject = "Inventory update";
MailApp.sendEmail("test#test.com", subject, message);
}

Answer 1

try this:
var send=true;
for (var i=0;i<data.length;i++) {
var row = data[i];
message = message + row[0] + "-" +row[1] + "\n";
if(!row[0] || !row[1]){
send=false;
break;
}
}
// Send one email with all the rows
var subject = "Inventory update";
if(send){
MailApp.sendEmail("test#test.com", subject, message);
}