jquery实现上拉加载更多

let scrollEvent = 'scroll.' + Date.now();
let touchmoveEvent = 'touchmove.' + Date.now();
SSpa.onModEvents('invitation/list',{
    ready: _=>{
        initVue()
    },
    isShow: _=>{
        Vm && Vm.init()
        let title = '我的邀请'
        hybirdApp.setTitle(title)
        document.title = title

        let screenH = document.documentElement.clientHeight;
        function loadMore() {
            let lastItem = $(Vm.$el).find('table')[0];
            let lastBot = lastItem ? lastItem.getBoundingClientRect().bottom : 0;
            if(lastItem && lastBot-screenH<=0) {
                if(Vm.hasNextPage){
                    Vm.queryDate(Vm.nextPage);
                }
            }
        }
        $(document).on(scrollEvent + ' ' + touchmoveEvent, window.Util.debounce(function(){
            if(Vm.hasNextPage){
                loadMore();
            }
        }));

    }
})