Google sheets export to txt - google-apps-script

Question

Hello I made this script to export the data from a column to a .txt on my google drive
function createOrAppendFile() {
var ss = SpreadsheetApp.getActive();
var sheet = ss.getActiveSheet();
var range = sheet.getRange('G3:G50');
var rows = range.getValues();
var fileName="test.txt";
var folderName="Videos";
var data = rows.splice(0);
var str = data.map(function(e) {return e.join()}).join("\n");
var content = str;
// get list of folders with matching name
var folderList = DriveApp.getFoldersByName(folderName);
if (folderList.hasNext()) {
// found matching folder
var folder = folderList.next();
// search for files with matching name
var fileList = folder.getFilesByName(fileName);
if (fileList.hasNext()) {
// found matching file - append text
var file = fileList.next();
var combinedContent = content;
file.setContent(combinedContent);
}
else {
// file not found - create new
folder.createFile(fileName, content);
}
}
}
The problem is that when I export the data its exporting with the empty lines and on the .txt shows up empty lines that i dont want to have, how i can make it? So I only export the lines that have content.
This is what the .txt looks like https://i.stack.imgur.com/wplZL.png

Answer 1

I think that the reason of your issue might be due to sheet.getRange('G3:G50'). In this case, even when the empty rows are included below the data range in the range of G3:G50, range.getValues() retrieves all rows of G3:G50. If you want to retrieve the values with the data range, how about the following modification?
From:
var range = sheet.getRange('G3:G50');
To:
var range = sheet.getRange('G3:G' + sheet.getLastRow());
And, when you want to remove all empty rows of the column "G", you can also use the following modification.
From:
var range = sheet.getRange('G3:G50');
var rows = range.getValues();
To:
var range = sheet.getRange('G3:G' + sheet.getLastRow());
var values = range.getValues().filter(([g]) => g.toString() != "");
References:
getLastRow()
filter()