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74 changes: 57 additions & 17 deletions index.html
Original file line number Diff line number Diff line change
Expand Up @@ -3,16 +3,56 @@
<head>
<title>Socket.IO chat</title>
<style>
body { margin: 0; padding-bottom: 3rem; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
body {
margin: 0;
padding-bottom: 3rem;
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
Helvetica, Arial, sans-serif;
}

#form { background: rgba(0, 0, 0, 0.15); padding: 0.25rem; position: fixed; bottom: 0; left: 0; right: 0; display: flex; height: 3rem; box-sizing: border-box; backdrop-filter: blur(10px); }
#input { border: none; padding: 0 1rem; flex-grow: 1; border-radius: 2rem; margin: 0.25rem; }
#input:focus { outline: none; }
#form > button { background: #333; border: none; padding: 0 1rem; margin: 0.25rem; border-radius: 3px; outline: none; color: #fff; }
#form {
background: rgba(0, 0, 0, 0.15);
padding: 0.25rem;
position: fixed;
bottom: 0;
left: 0;
right: 0;
display: flex;
height: 3rem;
box-sizing: border-box;
backdrop-filter: blur(10px);
}
#input {
border: none;
padding: 0 1rem;
flex-grow: 1;
border-radius: 2rem;
margin: 0.25rem;
}
#input:focus {
outline: none;
}
#form > button {
background: #333;
border: none;
padding: 0 1rem;
margin: 0.25rem;
border-radius: 3px;
outline: none;
color: #fff;
}

#messages { list-style-type: none; margin: 0; padding: 0; }
#messages > li { padding: 0.5rem 1rem; }
#messages > li:nth-child(odd) { background: #efefef; }
#messages {
list-style-type: none;
margin: 0;
padding: 0;
}
#messages > li {
padding: 0.5rem 1rem;
}
#messages > li:nth-child(odd) {
background: #efefef;
}
</style>
</head>
<body>
Expand All @@ -23,22 +63,22 @@
<script src="/socket.io/socket.io.js"></script>

<script>
var socket = io();
const socket = io();

var messages = document.getElementById('messages');
var form = document.getElementById('form');
var input = document.getElementById('input');
const messages = document.getElementById("messages");
const form = document.getElementById("form");
const input = document.getElementById("input");

form.addEventListener('submit', function(e) {
form.addEventListener("submit", (e) => {
e.preventDefault();
if (input.value) {
socket.emit('chat message', input.value);
input.value = '';
socket.emit("chat message", input.value);
input.value = "";
}
});

socket.on('chat message', function(msg) {
var item = document.createElement('li');
socket.on("chat message", (msg) => {
const item = document.createElement("li");
item.textContent = msg;
messages.appendChild(item);
window.scrollTo(0, document.body.scrollHeight);
Expand Down
16 changes: 8 additions & 8 deletions index.js
Original file line number Diff line number Diff line change
@@ -1,15 +1,15 @@
const app = require('express')();
const http = require('http').Server(app);
const io = require('socket.io')(http);
const app = require("express")();
const http = require("http").Server(app);
const io = require("socket.io")(http);
const port = process.env.PORT || 3000;

app.get('/', (req, res) => {
res.sendFile(__dirname + '/index.html');
app.get("/", (req, res) => {
res.sendFile(__dirname + "/index.html");
});

io.on('connection', (socket) => {
socket.on('chat message', msg => {
io.emit('chat message', msg);
io.on("connection", (socket) => {
socket.on("chat message", (msg) => {
io.emit("chat message", msg);
});
});

Expand Down