nodejs input password in Terminal

askPassword.js

function askPassword(callback) {
  var stdin = process.openStdin(),
      stdio = process.binding("stdio");

  stdio.setRawMode();

  console.log('Enter your password:');
  var password = "";
  stdin.on("data", function(c) {
    c = c + "";
    switch (c) {
      case "\n": case "\r": case "\u0004":
        stdio.setRawMode(false);
        stdin.pause();
        callback(password);
        break;
      case "\u0003":
        process.exit();
        break;
      default:
        password += c;
        break;
    }
  });
}

Thank you! This was really helpful!