BufferedWriter class

Writes text to a character-output stream, buffering characters to provide efficient writing of characters, arrays, and strings.

The buffer size may be specified, or the default size may be used. The default is large enough for most purposes.

Example Usage

// Basic buffered writing
final buffered = BufferedWriter(FileWriter('output.txt'));
try {
  await buffered.write('Hello, World!');
  await buffered.writeLine('This is a new line.');
  await buffered.flush();
} finally {
  await buffered.close();
}

// Writing large amounts of data efficiently
final buffered = BufferedWriter(FileWriter('large_output.txt'), bufferSize: 65536);
try {
  for (int i = 0; i < 10000; i++) {
    await buffered.writeLine('Record $i: ${generateLargeString()}');
  }
  await buffered.flush();
} finally {
  await buffered.close();
}