Detect if a page has a vertical scrollbar?

Question

I just want some simple JQ/JS to check if the current page/window (not a particular element) has a vertical scrollbar.

Googling gives me stuff that seems overly comp

Answer 1

I tried the previous answer and doesn't seem to be working the $("body").height() does not necessarily represent the whole html height.

I have corrected the solution as follows:

// Check if body height is higher than window height :) 
if ($(document).height() > $(window).height()) { 
    alert("Vertical Scrollbar! D:"); 
} 

// Check if body width is higher than window width :) 
if ($(document).width() > $(window).width()) { 
    alert("Horizontal Scrollbar! D:<"); 
}