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ws.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
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; }
#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>
<h1>Hello WebSocket</h1>
<ul id="messages"></ul>
<form id="form" action="">
<input id="input" autocomplete="off" /><button>Send</button>
</form>
<script>
const ws = new WebSocket('ws://localhost:4000/')
// Send chat messages
const form = document.getElementById('form');
const input = document.getElementById('input');
const msg= document.getElementById('messages')
ws.onopen= event =>{
console.log(event)
}
//to get ws messagae
ws.onmessage= message=>{
msg.innerHTML= message.data
}
form.addEventListener('submit',
(e)=>{
e.preventDefault()
if (input.value.trim() !== ''){
ws.send(input.value)
}
input.value=''
})
</script>
</body>
</html>