Access user input after prompt Node JS

Question

Suppose I've prompted the user for input with readline ( in Node ).

Is it possible to access what he types before it's even entered?

Thanks in advance!

Answer 1

Switch to the raw mode and you can get one by one when the user presses the key.

var stdin = process.openStdin(); 
require('tty').setRawMode(true);    

stdin.on('keypress', function (chunk, key) {
  process.stdout.write('Get Chunk: ' + chunk + '\n');
  if (key && key.ctrl && key.name == 'c') process.exit();
});