Question

I use process.stdin.setEncoding('utf8');
But when i listen a event 'data', the text isn’t egal.

process.stdin.on('data', function (text) {
  if (text === 'q') console.log('ouiiiiiiiiii');
  else console.log(text);
});

I type ‘q’ but don’t display “ouiiiiiiiii”, and the text is q… but the text === 'q' is to false, why ? thanks

I think it’s due to the encoding, but i don’t know.

Answer 1

First, call process.stdin.resume() before you setup your callback on stdin. Also, make sure to convert your text variable to a string, as I believe it’s a Buffer object.

So, something like this should work:

process.stdin.resume();
process.stdin.setEncoding('utf8');

process.stdin.on('data', function (text) {
 if (text.toString().trim() === 'q') {
   console.log('ouiiiiiiiiii');
 } else {
   console.log(text.toString());
 }
});