So I've already written a function that works (based on underscores throttle) for functions that don't take in a parameter, but I'd like to make it generic enough to pass in a function with a variable number of parameters. Here's what I have:

    (function () {

    var lastTime = new Date().getTime();

    function foo() {
        var newTime = new Date().getTime();
        var gap = newTime - lastTime; // Travels up scope chain to use parents lastTime.  Function has access to variables declared in the same scope
        console.log('foo called,  gap:' + gap);
        lastTime = newTime; // Updates lastTime
        //console.log(x);
        //x++;
    }

    var throttle = function(func, wait) {
        var result;
        var timeout = null; // flag updated through closure
        var previous = 0; // time last run updated through closure

        return function() { //func, wait, timeout, previous available through scope
            var now = new Date().getTime();
            var remaining = wait - (now - previous);

            if (remaining <= 0) {
                clearTimeout(timeout);
                timeout = null;
                previous = now;
                result = func.apply(this, arguments); //func is available through closure
            }
            return result;
        };
    };

    document.addEventListener("scroll", throttle(foo, 1000));
    //document.addEventListener("scroll", throttle(foo(5), 2000));

}());

But I'd like to modify foo to foo(x) and get this to work

    (function () {

    var lastTime = new Date().getTime();

    function foo(x) {
        var newTime = new Date().getTime();
        var gap = newTime - lastTime; // Travels up scope chain to use parents lastTime.  Function has access to variables declared in the same scope
        console.log('foo called,  gap:' + gap);
        lastTime = newTime; // Updates lastTime
        console.log(x);
        x++;
    }

    var throttle = function(func, wait) {
        var result;
        var timeout = null; // flag updated through closure
        var previous = 0; // time last run updated through closure

        return function() { //func, wait, timeout, previous available through scope
            var now = new Date().getTime();
            var remaining = wait - (now - previous);

            if (remaining <= 0) {
                clearTimeout(timeout);
                timeout = null;
                previous = now;
                result = func.apply(this, arguments); //func is available through closure
            }
            return result;
        };
    };

    document.addEventListener("scroll", throttle(foo(5), 2000));

}());