#documentelement

[edo]

What return height size by IE, backCompat IE?

何回やってもどれがどの値を返すか覚えられん( ;´Д`) のでとりあえずざっくりメモ(´・ω・`) 

var body = document.body,     html = document.documentElement;

//document.compatMode === backCompat body.clientHeight //=> viewport size. body.scrollHeight //=> contents size. body.offsetHeight //=> viewport size.

html.clientHeight //=> 0; html.scrollHeight //=> viewport size. html.offsetHeight //=> viewport size.

//document.compatMode === CSS1compat body.clientHeight //=> contents size. body.scrollHeight //=> contents size. body.offsetHeight //=> contents size.

html.clientHeight //=> viewport size. html.scrollHeight //=> contents size.(larger) html.offsetHeight //=> viewport size.