vue 纯js监听滚动条到底部的实例讲解

window.onscroll = function()｛...｝

 created(){
 window.onscroll = function(){
 //变量scrollTop是滚动条滚动时，距离顶部的距离
 var scrollTop = document.documentElement.scrollTop||document.body.scrollTop;
 //变量windowHeight是可视区的高度
 var windowHeight = document.documentElement.clientHeight || document.body.clientHeight;
 //变量scrollHeight是滚动条的总高度
 var scrollHeight = document.documentElement.scrollHeight||document.body.scrollHeight;
    //滚动条到底部的条件
    if(scrollTop+windowHeight==scrollHeight){
    //写后台加载数据的函数
   console.log("距顶部"+scrollTop+"可视区高度"+windowHeight+"滚动条总高度"+scrollHeight);
    } 
  }
 }