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Why does Firefox return 0 as the value of $(window).height()

It seems to me that Firefox ought to be better equipped to return the proper value when using $(window).height().

I am using jQuery 1.8.2. Is this a bug in that particular build? Every other browser I have tested returns an appropriate value when calculating viewport height.

To work around this, I've used snip below to apply a pixel value to a div.

$(window).bind('cwsObjectsShown', function() {
  var height = $(window).height();
  if (height === 0) {
     height = window.innerHeight;
  }
  height = height - '120';
  $('#game_objects').css('height', height + 'px');
});
like image 869
killtheliterate Avatar asked Oct 17 '12 15:10

killtheliterate


5 Answers

$(window).height() and also $(window).width() return 0 in IE when in compatibility mode. Not check this in FireFox, may be the same. try to use $(document).height() or $(document).width() instead.

like image 65
flap13 Avatar answered Nov 12 '22 10:11

flap13


jQuery's $(window).height() is sensitive to doctype. Try <!doctype html> ?

The jQuery 1.8.1 release notes say

Don’t use Quirks mode! jQuery has never supported Quirks mode and we do not perform any testing in Quirks. This can affect values like $("window").height(), and the jQuery 1.8 Quirks mode results did change in order to support some modern browser features. The majority of problem cases we’ve seen are from developers that wanted to be in Standards mode but had an invalid doctype or extraneous markup before their tag. When in doubt, use the simple and short <!doctype html>.

For example, with jQuery 1.8.2 and Firefox 16, I get a valid $(window).height() with doctype html, but height 0 with doctype html5. In Chromium 20, both work. (The W3C HTML5 spec does say to use doctype html, not html5.)

like image 39
Mitchell Avatar answered Nov 12 '22 09:11

Mitchell


Try this function:

function GetBrowserDim() {
    if (window.innerHeight) {
        return { w: window.innerWidth, h: window.innerHeight};
    } else {
        return { w: document.body.clientWidth, h: document.body.clientHeight };
    }
}
like image 27
Igor Krupitsky Avatar answered Nov 12 '22 09:11

Igor Krupitsky


in my case i had to delete the attributes in the html element

<html lang="en-US" prefix="og: http://ogp.me/ns#">

changed to just

<html>

now i get the correct document width and height

like image 2
Milo Timbol Avatar answered Nov 12 '22 10:11

Milo Timbol


I found the answer to this strange render of height by jquery in Firefox...

I used class="no-js" in my html tag with doctype... when I removed this, FF calculated correctly... so I added this class with jquery like this $('html').addClass('no-js');

now the calulated is same in all browsers..

like image 1
Matija Štrlekar Avatar answered Nov 12 '22 10:11

Matija Štrlekar