JavaScript to get the page height (multiple browsers)

A little research on obtaining the visible window size of various browsers

<SCRIPT> function getinfo () {var S = ""; S + = "visible area width:" + document. body. clientwidth; S + = "visible area of the webpage high:" + document. body. clientheight; S + = "visible area width of the webpage:" + document. body. offsetwidth + "(including the width of the edge and scroll bar)"; S + = "visible area of the webpage Height:" + document. body. offsetheight + "(including edge width)"; S + = "webpage text width:" + document. body. scrollwidth; S + = "webpage text Height:" + document. body. scrollheight; S + = "the height of the page to which the page is rolled (FF):" + document. body. scrolltop; S + = "high page volume (IE):" + document.doc umentelement. scrolltop; S + = "left when the webpage is rolled:" + document. body. scrollleft; S + = "webpage body part:" + window. screentop; S + = "webpage body section left:" + window. screenleft; S + = "high screen resolution:" + window. screen. height; S + = "Screen Resolution width:" + window. screen. width; S + = "available workspace height of the screen:" + window. screen. availheight; S + = "available workspace width:" + window. screen. availwidth; S + = "your screen setting is" + window. screen. colordepth + "bit color"; S + = "Your Screen Settings" + window. screen. devicexdpi + "pixels/inches"; // alert (s);} getinfo (); </SCRIPT>

 

In my local test:
It can be used in IE, Firefox, and opera
Document. Body. clientwidth
Document. Body. clientheight
It is very simple and convenient.
In the company's projects:
Opera is still in use
Document. Body. clientwidth
Document. Body. clientheight
However, ie and Firefox use
Document.doc umentelement. clientwidth
Document.doc umentelement. clientheight
It turned out to be W3C standards.
<! Doctype HTML public "-// W3C // dtd xhtml 1.0 transitional // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
If this line is added to the page

In ie:
Document. Body. clientwidth ==> body object width
Document. Body. clientheight ==> body object height
Document.doc umentelement. clientwidth ==> visible area width
Document.doc umentelement. clientheight => visible area height
In Firefox:
Document. Body. clientwidth ==> body object width
Document. Body. clientheight ==> body object height
Document.doc umentelement. clientwidth ==> visible area width
Document.doc umentelement. clientheight => visible area height
?
In opera:
Document. Body. clientwidth ==> visible area width
Document. Body. clientheight ==> visible area height
Document.doc umentelement. clientwidth ==> Page Object width (that is, the width of the body object plus the margin width)
Document.doc umentelement. clientheight ==> Page Object height (that is, the height of the body object plus the margin height)
If W3C standards are not defined
IE:
Document.doc umentelement. clientwidth ==> 0
Document.doc umentelement. clientheight => 0
Firefox:
Document.doc umentelement. clientwidth ==> Page Object width (that is, the width of the body object plus the margin width)

Document.doc umentelement. clientheight ==> Page Object height (that is, the height of the body object plus the margin height)
Opera:
Document.doc umentelement. clientwidth ==> Page Object width (that is, the width of the body object plus the margin width)

Document.doc umentelement. clientheight ==> Page Object height (that is, the height of the body object plus the margin height)
It is really troublesome. In fact, from the perspective of development, it is much easier to reduce the number of objects and methods and not to use the latest standards.