import socket.io code example

Example 1: html socket io import

<script src="/socket.io/socket.io.js"></script>

Example 2: import socket io frontend

<script src="/socket.io/socket.io.js"></script><script>  const socket = io('http://localhost');</script>

Example 3: socket.io documentation

const socket = new WebSocket('ws://localhost:3000');socket.onopen(() => {  socket.send('Hello!');});socket.onmessage(data => {  console.log(data);});