js下拉加载更多

var obj1 = document.getElementById('container');
var obj2 = document.getElementById('text');
var t;
obj1.addEventListener('scroll',function() {
  if(t) clearTimeout(t);
    t = setTimeout(function() {
    if(obj1.scrollTop + obj1.offsetHeight == obj1.scrollHeight){
　　　　// do something
       obj2.innerText = '暂无更多'
    }
  },100)
}, false)