JS Debouncer

debouncer.js

/**
 * Debouncer function to prevent multiple calls from a repeatedly called event
 * @link http://stackoverflow.com/a/4298672/187954
 * @link https://gist.github.com/3649866
 * @param  {Function} callback A callback to execute when timeout is reached with no subsequent calls.
 * @param  {Integer|null} timeout A custom timeout or null for 200
 * @return {Function} The debouncer function.
 */
function eventDebouncer(callback, timeout) {
    timeout = timeout || 200;
    var timeoutID;
    return function() {
        var scope = this, args = arguments;
        window.clearTimeout(timeoutID);
        timeoutID = window.setTimeout(function() {
            callback.apply(scope, Array.prototype.slice.call(args));
        }, timeout);
    };
}

// Perform an action on a completed window resize
$(window).resize(debouncer(function(event) {
    console.log('resized');
}));

I've made a simplified version at https://gist.github.com/3734311 with everything centric to $(document).resize(...) as this is what you're (mostly) wanting to debounce.