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index.html
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<!doctype html>
<html>
<head>
<title>Socket.IO Example</title>
</head>
<body>
<script src="/socket.io/socket.io.js"></script>
<link rel="stylesheet" href="/css/bootstrap.min.css">
<script src="/js/jquery.min.js"></script>
<script src="/js/bootstrap.min.js"></script>
<div class="container">
<div class="chat">
<ul class="chat-ul">
</ul>
<div class="input">
<input class="input-area" type="text">
<input class="input-button" type="button" id="send" value="OK">
</div>
</div>
</div>
<script>
var socket = io('http://127.0.0.1:3000');
document.querySelector('#send').addEventListener('click', function (event) {
event.preventDefault();
let data = document.querySelector('.input-area').value;
socket.emit('message', data);
});
socket.on('new_message', function (data) {
let li = document.createElement('li');
li.textContent = data;
li.classList.add('list-item');
document.querySelector('ul').appendChild(li);
})
</script>
<style>
body {
background-color: #EFEFF3;
}
.chat {
width: 600px;
margin: auto;
background-color: white;
margin-top: 50px;
padding: 10px;
}
li {
list-style-type: none;
border: 1px solid black;
border-radius: 8px;
margin: 10px;
padding: 10px;
}
.input {
margin: 30px;
padding: 10px;
}
.input-area {
margin: 10px;
width: 430px;
border-radius: 8px;
border: 1px solid black;
padding: 5px;
}
.input-button {
padding: 5px;
margin: 5px;
}
input[type="text"]:focus {
outline: none;
}
</style>
</body>
</html>