For nearly a decade i've been using:
document.body.scrollHeight
to return the "ideal" height of the browser window. This worked fine when i was forcing Internet Explorer into quirks mode, by using a quirks-mode doctype:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
Now i want to opt into standards mode, except the meaning of scrollHeight has changed:
- Quirks Mode:
document.body.scrollHeight= the height of the document - Standards Mode:
document.body.scrollHeight= the height of the<body>element
What is the standards mode equivalent of document.body.scrollHeight?
See also
document.documentElement.scrollHeight I believe.
For viewport it's window.innerHeight for modern browsers.
If the above aren't what you want, here's a list of a bunch of them:
- document.documentElement.[scrollHeight,clientHeight,offsetHeight]
- document.body.[scrollHeight,clientHeight,offsetHeight]
- window.[inner,outer][Height,Width] ( modern browsers only )
来源：https://stackoverflow.com/questions/3788830/html-dom-what-is-standards-equivalent-of-document-body-scrollheight