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Use ES6 + Remove jQuery + Improved css #134

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66 changes: 35 additions & 31 deletions source/get-started/chat.md
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Original file line number Diff line number Diff line change
Expand Up @@ -83,21 +83,22 @@ And populate `index.html` with the following:
<head>
<title>Socket.IO chat</title>
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font: 13px Helvetica, Arial; }
form { background: #000; padding: 3px; position: fixed; bottom: 0; width: 100%; }
form input { border: 0; padding: 10px; width: 90%; margin-right: .5%; }
form button { width: 9%; background: rgb(130, 224, 255); border: none; padding: 10px; }
#messages { list-style-type: none; margin: 0; padding: 0; }
#messages li { padding: 5px 10px; }
#messages li:nth-child(odd) { background: #eee; }
body { margin: 0; padding-bottom: 3rem; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
.bottom_bar { 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); }
#messageInput { border: none; padding: 0 1rem; flex-grow: 1; border-radius: 2rem; margin: 0.25rem; }
#sendButton { background: #333; border: none; padding: 0 1rem; margin: 0.25rem; border-radius: 3px; outline: none; color: #fff; }
#messageInput:focus { outline: none; }
#messagesList { list-style-type: none; margin: 0; padding: 0; }
#messagesList > li { padding: 0.5rem 1rem; }
#messagesList > li:nth-child(odd) { background: #efefef; }
</style>
</head>
<body>
<ul id="messages"></ul>
<form action="">
<input id="m" autocomplete="off" /><button>Send</button>
</form>
<ul id="messagesList"></ul>
<div class="bottom_bar">
<input id="messageInput" autocomplete="off" placeholder="Type a message" />
<button id="sendButton">Send</button>
</div>
</body>
</html>
```
Expand Down Expand Up @@ -188,14 +189,14 @@ Let’s make it so that when the user types in a message, the server gets it as
<script src="/socket.io/socket.io.js"></script>
<script src="https://code.jquery.com/jquery-1.11.1.js"></script>
<script>
$(function () {
var socket = io();
$('form').submit(function(e){
e.preventDefault(); // prevents page reloading
socket.emit('chat message', $('#m').val());
$('#m').val('');
return false;
});
const socket = io();

const messageInput = document.getElementById('messageInput');
const sendButton = document.getElementById('sendButton');

sendButton.addEventListener('click', function(){
socket.emit('chat message', messageInput.value);
messageInput.value = '';
});
</script>
```
Expand Down Expand Up @@ -246,17 +247,20 @@ And on the client side when we capture a `chat message` event we’ll include it

```html
<script>
$(function () {
var socket = io();
$('form').submit(function(e){
e.preventDefault(); // prevents page reloading
socket.emit('chat message', $('#m').val());
$('#m').val('');
return false;
});
socket.on('chat message', function(msg){
$('#messages').append($('<li>').text(msg));
});
const socket = io();

const messagesList = document.getElementById('messagesList');
const messageInput = document.getElementById('messageInput');
const sendButton = document.getElementById('sendButton');

sendButton.addEventListener('click', function(){
socket.emit('chat message', messageInput.value);
messageInput.value = '';
});

socket.on('chat message', function(msg){
messagesList.innerHTML += `<li>${msg}</li>`;
window.scrollTo(0, document.body.scrollHeight);
});
</script>
```
Expand Down