jQuery判断页面滚动条滚动方向

代码2017-11-20962 人已阅来源:网络

jQuery判断页面滚动条滚动方向

var before = $(window).scrollTop();
$(window).scroll(function() {
var after = $(window).scrollTop();
if (before<after) {
console.log('上');
before = after;
};
if (before>after) {
console.log('下');
before = after;
};
});