How to Use Sockets in JavaScript\HTML?
May be using some cool HTML5 technics?
Libs? Tutorials? Blog Articles?
How to Use Sockets in JavaScript\HTML?
May be using some cool HTML5 technics?
Libs? Tutorials? Blog Articles?
Specifications:
Articles:
Tutorial:
None found so far
Libraries:
How to Use Sockets in JavaScript/HTML?
There is no facility to use general-purpose sockets in JS or HTML. It would be a security disaster, for one.
There is WebSocket in HTML5. The client side is fairly trivial:
socket= new WebSocket('ws://www.example.com:8000/somesocket');
socket.onopen= function() {
socket.send('hello');
};
socket.onmessage= function(s) {
alert('got reply '+s);
};
You will need a specialised socket application on the server-side to take the connections and do something with them; it is not something you would normally be doing from a web server's scripting interface. However it is a relatively simple protocol; my noddy Python SocketServer-based endpoint was only a couple of pages of code.
In any case, it doesn't really exist, yet. Neither the JavaScript-side spec nor the network transport spec are nailed down, and no browsers support it.
You can, however, use Flash where available to provide your script with a fallback until WebSocket is widely available. Gimite's web-socket-js is one free example of such. However you are subject to the same limitations as Flash Sockets then, namely that your server has to be able to spit out a cross-domain policy on request to the socket port, and you will often have difficulties with proxies/firewalls. (Flash sockets are made directly; for someone without direct public IP access who can only get out of the network through an HTTP proxy, they won't work.)
Unless you really need low-latency two-way communication, you are better off sticking with XMLHttpRequest
for now.