writeLinesTxt function

Future<void> writeLinesTxt(
  1. List<String> lines,
  2. String fileName,
  3. {Encoding encoding = utf8,
  4. FileMode mode = FileMode.write}

Write a list of line in a TXT file lines : a list where each line is a string that will be written in the file fileName : file name or path of the file baseDir : optional, base directory to the file, if not informed, get current script path. encoding : optional, the encoding of the file, default is utf8 mode : optional, the mode how the program will write the file:

  • FileMode.write: truncates the file to length zero, default.
  • FileMode.append: sets the initial write position to the end of the file. Examples

var data = "some informatio \nto save in the file"; await writeLinesTxt(data, 'some_text.txt');


Future<void> writeLinesTxt(List<String> lines, String fileName,
    {Encoding encoding = utf8, FileMode mode = FileMode.write}) async {
  var file = await File(retrieveFilePath(fileName)).create(recursive: true);
  var sink = file.openWrite(encoding: encoding, mode: mode);

  for (var l in lines) {
    sink.write(l + '\n');

  await sink.close();