How to find usable screen size in Javascript

Question

I know we get the screen size using screen.height and screen.width. I am interested in knowing how to find the usable screen area using Javascript. This is like screen height minus address bar height minus toolbar etc.

Answer 1

For most browser you can read window.innerWidth and window.innerHeight, for Internet Explorer its document.documentElement.clientWidth and document.documentElement.clientHeight, I think...