websockets

open websocket

ws = new WebSocket(url);

sending a message

ws.send('hello world!');

events

on message

ws.onmessage = function(e) {
	console.log('received message: ' + e.data);
}

on open

ws.onopen = function() {
	console.log('socket open');
}

on close

ws.onclose = function() {
	console.log('closing socket');
}

links

websockets echo service

https://www.websocket.org/echo.html