How does 'readable' event really work?

[krlicmuhamed]

What happens when parsing the buffer fails? (ex. sudden cut off, random data being inserted)
How am I going to manage that?

What does this piece of code do?

parser.on("readable", function() {
  var e;
  while (e = parser.read()) {
    console.log(JSON.stringify(e, null, 2));
  }
});

I think that loop is used for checking buffer read completion, am I right?

Thanks