websocket.js using node and ws package

websocket.js

'use strict';

import { WebSocketServer } from 'ws';

const wss = new WebSocketServer({ port: 8080 });

wss.on('connection', function connection(ws) {
    ws.on('error', console.error);

    ws.on('message', function message(data) {
        console.log('received: %s', data);
    });

    ws.send('something');

    setInterval(() => {
        const dateNow = new Date();
        ws.send(`something  @ ${dateNow.toISOString()}`);
    }, 2000);
});