debounce.js

(function() {
    
    var debounce = function (callback, wait) {
        var timeout,
            thisObj;
        return function() {

            var later = function() {
                timeout = null;
                callback.apply(thisObj);
            };
            clearTimeout(timeout);
            timeout = setTimeout(later, wait);
        };
    }
        
    var fn = debounce(function() {
        console.log('debounced');
    }, 500);
    
    //fn();
    
    // call with interval > bouncerate
    //setInterval(fn, 600); // should always call
    
    // call with interval < wait period
    var count = 0;
    var intId = setInterval(function() {
        fn();
        if (++count == 10) {
            console.log(count);
            clearInterval(intId);
        }
    }, 300); // should not call for 10 goes
})();