Question

I’m curious how I would get the width of the document, it looks like I can get the width of the window using document.body.offsetWidth but everything else I try is like a few pixels different from document.body.offsetWidth and I need the document’s width which is larger, and doesn’t change when the window is resized.

Answer 1

function getSize()
{
    var w=window,d=document,e=d.documentElement,g=d.getElementsByTagName('body')[0];
    var x=w.innerWidth||e.clientWidth||g.clientWidth;
    var y=w.innerHeight||e.clientHeight||g.clientHeight;
    return {width:x, height:y}
}
var size=getSize();
console.log(size.width+" "+size.height);

DEMO.