How do I detect parity bit error when reading in serial data?

[Haziham]

Hi there

I am currently using the serialport package in node.js on a windows computer. I am reading in serial information using the code below. How can I set it up to produce an error if there is a parity bit error for an incoming byte?

const {SerialPort} = require('serialport');
const port = new SerialPort({path: 'COM6', baudRate: 9600, parity: 'even'})

port.on('data', function (data){
    console.log(data);
}) 

[reconbot]

I've never seen a way to detect bad parity without looking at the expected data and making a guess.