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  • js、jquery让滚动条到底部

    jquery

    $('body').scrollTop($('body')[0].scrollHeight);
    //把body换掉即可

    js

    //滚动条在Y轴上的滚动距离
    function getScrollTop(){
      var scrollTop = 0, bodyScrollTop = 0, documentScrollTop = 0;
      if(document.body){
        bodyScrollTop = document.body.scrollTop;
      }
      if(document.documentElement){
        documentScrollTop = document.documentElement.scrollTop;
      }
      scrollTop = (bodyScrollTop - documentScrollTop > 0) ? bodyScrollTop : documentScrollTop;
      return scrollTop;
    }
    
    //文档的总高度
    function getScrollHeight(){
      var scrollHeight = 0, bodyScrollHeight = 0, documentScrollHeight = 0;
      if(document.body){
        bodyScrollHeight = document.body.scrollHeight;
      }
      if(document.documentElement){
        documentScrollHeight = document.documentElement.scrollHeight;
      }
      scrollHeight = (bodyScrollHeight - documentScrollHeight > 0) ? bodyScrollHeight : documentScrollHeight;
      return scrollHeight;
    }
    //浏览器视口的高度
    function getWindowHeight(){
      var windowHeight = 0;
      if(document.compatMode == "CSS1Compat"){
        windowHeight = document.documentElement.clientHeight;
      }else{
        windowHeight = document.body.clientHeight;
      }
      return windowHeight;
    }
    window.onscroll = function(){
      if(getScrollTop() + getWindowHeight() == getScrollHeight()){
        alert("已经到最底部了!!");
      }
    };
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  • 原文地址:https://www.cnblogs.com/zyfeng/p/13219345.html
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