滾動螢幕至最下方觸發事件原始碼分享
//文件高度
function getDocumentTop() {
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;
}
//可視視窗高度
function getWindowHeight() {
var windowHeight = 0;
if (document.compatMode == "CSS1Compat") {
windowHeight = document.documentElement.clientHeight;
} else {
windowHeight = document.body.clientHeight;
}
return windowHeight;
}
//滾動條滾動高度
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;
}
// 最後監聽螢幕滾動觸發ajax_function()方法請求資料
window.onscroll = function () {
if(getScrollHeight() == getWindowHeight() + getDocumentTop()){
ajax_function()
alert(1);
}
原創文章連結：http://www.zhicaipt.cn/hz_index/view/article_detail.html?id=42