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Node.js-14-Cookbook/Chapter04/websocket-server/public/index.html
T

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HTML

<h1>Communicating with WebSockets</h1>
<input id="msg" /><button id="send">Send</button>
<div id="output"></div>
<script>
const ws = new WebSocket("ws://localhost:3000");
const output = document.getElementById("output");
const send = document.getElementById("send");
send.addEventListener("click", () => {
const msg = document.getElementById("msg").value;
ws.send(msg);
output.innerHTML += log("Sent", msg);
});
function log(event, msg) {
return "<p>" + event + ": " + msg + "</p>";
}
ws.onmessage = function (e) {
output.innerHTML += log("Received", e.data);
};
ws.onclose = function (e) {
output.innerHTML += log("Disconnected", e.code);
};
ws.onerror = function (e) {
output.innerHTML += log("Error", e.data);
};
</script>