window.scrollMaxY的替代品？

Question

我试图用window.pageYOffset & window.scrollMaxY来计算当前页面进度。此方法在FF3.5下工作，但在webkit window.scrollMaxY未定义。

Answer 1

我逃脱了document.body.scrollHeight使

document.body.scrollHeight = window.pageYOffset + screen height in pixels 

页面（在Android）结束。

Answer 2

替代window.scrollMaxY：

document.documentElement.scrollHeight - document.documentElement.clientHeight 

给出下DOCTYPE XHTML 1.0过渡相同的结果用window.scrollMaxY IE7，IE8，FF3.5，Safari浏览器4，歌剧10，谷歌浏览器3。

Answer 3

两年后......

function getScrollMaxY(){ 

var innerh; 

if (window.innerHeight){ 
    innerh = window.innerHeight; 
}else{ 
    innerh = document.body.clientHeight; 
} 

if (window.innerHeight && window.scrollMaxY){ 
    // Firefox 
    yWithScroll = window.innerHeight + window.scrollMaxY; 
} else if (document.body.scrollHeight > document.body.offsetHeight){ 
    // all but Explorer Mac 
    yWithScroll = document.body.scrollHeight; 
} else { 
    // works in Explorer 6 Strict, Mozilla (not FF) and Safari 
    yWithScroll = document.body.offsetHeight; 
} 
return yWithScroll-innerh; 
} 

Answer 4

x = document.body.clientHeight; 
console.log(x ,"Cline HEight");  

xx = window.innerHeight; 
console.log(xx, "Inner Height"); 

xxx = document.body.scrollHeight 
console.log(xxx, "scrollHeight"); 

xxxx = window.scrollMaxY; 
console.log(xxxx, "scrollMaxY for IE"); 


xxxxx = document.body.offsetHeight; 
console.log(xxxxx, "offsetHeight"); 

xxxxxx= document.body.scrollTop; 
console.log(xxxxxx, "scrollTop");strong text