insert rows using sheets on google spreadsheets

Question

I am in the process of adapting the code below to insert a full row after function get emails is run. the extra row function works so i thought i would add line to the end of the getEmails. But it adds around 30 extra rows, i only need one added.

sheet.insertRows(2)

below is the getEmail code.

function getEmails() {
  var label = GmailApp.getUserLabelByName("pollux");
 var threads = label.getThreads();
 var row = 3;
 for (var i = 0; i < threads.length; i++) {
  var messages=threads[i].getMessages();
        for (var m=0; m < messages.length; m++) {   
          sheet.getRange(row,1).setValue(messages[m].getPlainBody());
     row++;
      sheet.insertRows(2);

some helpful suggestions would be great.

Cheers Mark

Answer 1

Remove this line sheet.insertRows(2); and place outside this for loop

for (var i = 0; i < threads.length; i++) {

Answer 2

Changed code to

function getEmails() {
  var label = GmailApp.getUserLabelByName("pollux");
 var threads = label.getThreads();
 var row = 3;
 sheet.insertRows(2);
for (var i = 0; i < threads.length; i++) {
   var messages=threads[i].getMessages();
   for (var m=0; m < messages.length; m++) {   
   sheet.getRange(row,1).setValue(messages[m].getPlainBody());
   row++;

now adds line and moves row down as 1 as i need.