Write a recursive exponential backoff service (ping) check.

1.js

var ping = function() {
    // ping...
};

var exponentialBackoff = function(method, currentDelay, maximumDelay) {
    var output = method();
    if (output) {
        return output;
    }

    if (currentDelay > maximumDelay) {
        currentDelay = maximumDelay;
    }

    setTimeout(function() {
        exponentialBackoff(method, Math.pow(currentDelay, 2), maximumDelay);
    }, currentDelay * 1000);
}

exponentialBackoff(ping, 10, 10000);