Let us start with writing client-side code in JavaScript. We will be hitting the same Echo server for now. Let's get started with our client-side code. Here is how the client code will look:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" >
<title>WebSocket Test</title>
<script language="javascript" type="text/javascript">
var wsUri = "ws://echo.websocket.org/";
var output;
function init(){
output = document.getElementById("output");
testWebSocket();
}
function testWebSocket(){
websocket = new WebSocket(wsUri);
websocket.onopen = onOpen;
websocket.onclose = onClose;
websocket.onmessage = onMessage;
websocket.onerror = onError;
}
function onOpen(evt){
writeToScreen("CONNECTED");
doSend("WebSocket rocks");
}
function onClose(evt){
writeToScreen(...