Scroll() event optimization

Scroll() event optimization

var throttle = (function () {
  return function (fn, delay) {
    delay || (delay = 100);
    var last = +new Date;
    return function () {
      var now = +new Date;
      if (now - last > delay) {
        fn.apply(this, arguments);
        last = now;
      }
    };
  };
})();
And then it can be used like this:

var outerPane = $details.find(".details-pane-outer"),

$(window).scroll(throttle(function() {
    // Check your page position and then
    // Load in more results
}, 250));


https://github.com/shichuan/javascript-patterns/blob/master/jquery-patterns/window-scroll-event.html