knockout infinite scrolling

ko-binding-scroll.js

ko.bindingHandlers.scroll = {

  updating: true,

  init: function(element, valueAccessor, allBindingsAccessor) {
      var self = this
      self.updating = true;
      ko.utils.domNodeDisposal.addDisposeCallback(element, function() {
            $(window).off("scroll.ko.scrollHandler")
            self.updating = false
      });
  },

  update: function(element, valueAccessor, allBindingsAccessor){
    var props = allBindingsAccessor().scrollOptions
    var offset = props.offset ? props.offset : "0"
    var loadFunc = props.loadFunc
    var load = ko.utils.unwrapObservable(valueAccessor());
    var self = this;

    if(load){
      element.style.display = "";
      $(window).on("scroll.ko.scrollHandler", function(){
        if(($(document).height() - offset <= $(window).height() + $(window).scrollTop())){
          if(self.updating){
            loadFunc()
            self.updating = false;
          }
        }
        else{
          self.updating = true;
        }
      });
    }
    else{
        element.style.display = "none";
        $(window).off("scroll.ko.scrollHandler")
        self.updating = false
    }
  }
}

How can I detect that scrolling has stopped and then call the loadFunc() ?

How can I defer the scroll event so it doesn't fire so much?