Comments on: offsetWidth/offsetHeight useless in IE9, FF4*

By: Vasil Dinkov

Vasil Dinkov — Tue, 05 Jul 2011 07:38:02 +0000

It seems that FF5 has fixed this behaviour.

Hmm, how did you test this? I still get integer values in FF5/Mac for offsetWidth/Height and the demo page still shows the issue for me.

By: MaxArt

MaxArt — Tue, 05 Jul 2011 00:14:44 +0000

This is terrible!
getComputedStyle is around 5 times slower than accessing offsetWidth in IE9 (even using .width insted of .getPropertyValue('width') ), it'd be a real pain when you have to resize a lot of elements correctly.

It seems that FF5 has fixed this behaviour. Sadly, the issue with IE9 still remains.

By: leo yin

leo yin — Sat, 02 Jul 2011 14:03:06 +0000

you can try set the body's height 100% ,and use get the body's height ,you can get the window 's offsetHeight.

By: Vasil Dinkov

Vasil Dinkov — Mon, 13 Jun 2011 19:47:46 +0000

Good question As far as I can see, in FF4 getBoundingClientRect() returns even preciser float values for width/height than getComputedStyle() (e.g. 1994.36669921875) while in IE9 the returned values are integers and are equal to offsetWidth/Height. So both browsers are inconsistent here.

By: Oliver

Oliver — Mon, 13 Jun 2011 13:33:38 +0000

Does it affect getClientBoundingRect() too? That's not available on FF2 or Safari3 of course.