Minimal javascript IRC client in console

paste_this_in_js_console.js

function irc(nickname, server, chan, onmsg, onjoin) {
    nickname = nickname || "nick_" + new Date().getTime().toString(36) + new Date().getMilliseconds().toString(36)
    chan = chan || "Z" + new Date().getTime().toString(18) + Math.random().toString(36).substring(2)
    server = server || "irc.unrealircd.org"
    var init = 0
    var ws = new WebSocket("wss://" + server);
    var s = (c,l)=>setTimeout(console.log.bind(this, "%c%s", "font-size: 14px; color:" + c, new Date().toLocaleString("it") + ": " + l))
    ws.onmessage = m=>{
        if (m.data.indexOf("PING") == 0)
            ws.send(m.data.replace("PI", "PO"));
        else
            if (irc.DEBUG) s("green", m.data)
        if ((init == 0) && (m.data.split(" ")[1] == "376")) {
            init = 1;
            ws.send("join #" + chan);
            s("orange", "CONNECTED")
            /* callback goes here */
        }
        if (init == 1) {
            if (m.data.split(" ")[1] == "PRIVMSG") {
                //s("blue",m.data.split(" ")[2]+"> "+m.data.split(" ").splice(3).join(" ").substring(1))
                onmsg && (onmsg(m.data.split(":")[1].split("!")[0], m.data.split(" ").splice(3).join(" ").substring(1))) || s("blue", m.data.split(":")[1].split("!")[0] + "> " + m.data.split(" ").splice(3).join(" ").substring(1))
            } else if (m.data.split(" ")[1] == "JOIN") {
                //s("blue",m.data.split(" ")[2]+"> "+m.data.split(" ").splice(3).join(" ").substring(1))
                onjoin && (onjoin(m.data.split(":")[1].split("!")[0], m.data.split(" ").splice(3).join(" ").substring(1))) || s("blue", m.data.split(":")[1].split("!")[0] + " joined.")
            } else if (m.data.split(" ")[1] == "353") {
                if (m.data.split(":")[2][0] == "@") {
                    ws.send("mode #" + chan + " +s");
                }
            }
        }
    }
    ws.onerror = e=>{
    	s("red", "ERROR");
    	fetch("https://"+server).then(c=>c.text())
    }

    ws.onclose = e=>{
        s("red", "CONNECTION CLOSED");
        setTimeout((function() {
            init = 0;
            var ws2 = new WebSocket(ws.url);
            ws2.onopen = ws.onopen;
            ws2.onmessage = ws.onmessage;
            ws2.onclose = ws.onclose;
            ws2.onerror = ws.onerror;
            ws2.f = ws.f;
            ws = ws2
        }
        ).bind(this), 5000)
    }

    ws.onopen = e=>{
        ws.send("user websocket * * :WebSocket User");
        ws.send("nick " + nickname)
    }
    ws.f = (message,nickorchan)=>ws.send("PRIVMSG " + (nickorchan || "#" + chan) + " :" + (message || nickorchan))
    ws.f.j = m=>m && ((chan = m) && (ws.send("JOIN #" + m))) || chan
    ws.f.l = m=>(ws.send("PART #" + chan + (m?" :"+m:"")))
    ws.f.q = m=>{
        if (m)
            ws.send(m);
        else
            ws.send("HELP")
    }
    ws.f.d = ()=>ws.close()
    ws.f.nick = nickname
    ws.f.w = (m)=>ws.send("WHO #" + (m || chan))
    ws.f.wi = (m)=>ws.send("WHOIS " + (m || nickname))
    return ws.f
}