JS 다양한 웹페이지 크기 판단 예시 방법_javascript 기술

复제대码 代码如下:

functionreachBottom() {
     var scrollTop = 0;
     var clientHeight = 0;
     var scrollHeight = 0;
     if (document.documentElement && document.documentElement.scrollTop) {
         scrollTop = document.documentElement.scrollTop;
     } else if (document. body) {
         scrollTop = document.body.scrollTop;
     }
     if (document.body.clientHeight && document.documentElement.clientHeight) {
         clientHeight = (document.body.clientHeight < document .documentElement.clientHeight) ? document.body.clientHeight: document.documentElement.clientHeight;
     } else {
         clientHeight = (document.body.clientHeight > document.documentElement.clientHeight) ? document.body.clientHeight: document.documentElement.clientHeight;
     }
     scrollHeight = Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);
     if (scrollTop clientHeight == scrollHeight) {
         true 반환;
     } else {
         false 반환;
     }
 }