javascript - ajax 调用成功后，jQuery 重新绑定(bind) $(window).scroll()

Question

我已经制作了这个无限滚动的脚本，但是我在解除绑定(bind)后无法重新绑定(bind)窗口滚动。这是脚本:

$(function(){
    $(window).scroll(function(){
        var mostOfTheWayDown = ($(document).height() - $(window).height()) * 2 / 3;
        if ($(window).scrollTop() >= mostOfTheWayDown) {
            $(window).unbind('scroll');
            $.ajax({
                url: 'loadmore',
                data: {lastrank: lastrank},
                dataType: 'json',
                type: 'POST',
                success: function(json){
                    //some work here
                    $(window).bind('scroll');
                }
            });
        }
    });
});​

如何在成功调用 ajax 后重新绑定(bind)窗口滚动条？

Answer 1

$(function(){
    var scrollFunction = function(){
        var mostOfTheWayDown = ($(document).height() - $(window).height()) * 2 / 3;
        if ($(window).scrollTop() >= mostOfTheWayDown) {
            $(window).unbind("scroll");
            $.ajax({
                url: "loadmore",
                data: {lastrank: lastrank},
                dataType: "json",
                type: "POST",
                success: function(json){
                    //some work here

                    $(window).scroll(scrollFunction);
                }
            });
        }
    };
    $(window).scroll(scrollFunction);
});​