问是否有javascript客户端库来排队具有存储支持的ajax请求？

EN

function Sender() {
    var requests = [],
        state = 0; // 0 = closed, 1 = open
        ws = new WebSocket();

    ws.onopen = function() {
        state = 1;
        if (requests.length) {
            send();
        }
    };

    ws.onerror = function() {
        if (ws.readyState !== 1) { // 1 is "OPEN"
            close();
        }
    };

    // Let's fill in the requests array if necessary
    // IIFE because I don't want to pollute the scope with `req`
    (function() {
        var req = JSON.parse(localStorage.get('queue'));
        if (req.length) {
            requests = requests.concat(req);
        }
    }());

    return {
        send: function(msg) {
            if (state === 0) {
                requests.push(msg);
            }
            else {
                send();
            }
        },
        close: function() {
            state = 0;
            localStorage.set('queue', JSON.stringify(requests));
        }
    };

    function send() {
        var done = false;
        while (!done) {
            if (state === 1) {
                ws.send(requests.pop());
                if (!requests.length) {
                    done = true;
                }
            }
            else {
                done = true;
            }
        }
    }
}

// Usage example
var sender = Sender();
sender.send('message');

// let's say your "disconnect" button is in a variable
disconnect.addEventListener('click', function() {
    sender.close();
}, false);