How do I determine height and scrolling position of window in jQuery?

Question

I need to grab the height of the window and the scrolling offset in jQuery, but I haven't had any luck finding this in the jQuery docs or Google.

I'm 90% certain there's a way to access height and scrollTop for an element (presumably including the window), but I just can't find the specific reference.

• Costa Michailidis: How about without jQuery?
• One Crayon: @Costa That has likely been asked elsewhere on StackOverflow, and if not it deserves to be its own question.

Answer 1

From jQuery Docs:

const height = $(window).height();
const scrollTop = $(window).scrollTop();

http://api.jquery.com/scrollTop/
http://api.jquery.com/height/

• One Crayon: Figures I just missed it in the docs; searched them, but their organization frankly makes no sense to me (still thinking in Mootools, I suppose). Thanks!
• Philluminati: This doesn't work in any browser for jQuery 1.3.2 even though it was supposedly added in an earlier version. Either that or I have something wrong with my code here
• Jonathan: $(window).height() gives the height viewport and not the scroll height. $(document).height() gives the real scroll height, as Aidamina suggested.
• Neil: I'm often amazed at how many upvotes simple things like this attract, but since I've looked this up twice this week already, have another +1

Answer 2

from http://api.jquery.com/height/ (Note: The difference between the use for the window and the document object)

$(window).height(); // returns height of browser viewport
$(document).height(); // returns height of HTML document

from http://api.jquery.com/scrollTop/

$(window).scrollTop() // return the number of pixels scrolled vertically

Answer 3

Pure JS

window.innerHeight
window.scrollY

is more than 10x faster than jquery (and code has similar size):

enter image description here

Here you can perform test on your machine: https://jsperf.com/window-height-width

• xgqfrms: window.scrollY, get scroll top height

Answer 4

$(window).height()
$(window).width()

There is also a plugin to jquery to determine element location and offsets

http://plugins.jquery.com/project/dimensions

scrolling offset = offsetHeight property of an element

• DA.: Thanks, Joseph. It's not exactly what I was looking for as I was trying to avoid using another plugin, but you got me searching in the right direction. In the end, it turns out what I really needed was '$(window).scrollTop()' to figure out how much of the page has scrolled past the viewport to adjust elements accordingly.

Answer 5

If you need to scroll to a point of an element. You can use Jquery function to scroll it up/down.

$('html, body').animate({
 scrollTop: $("#div1").offset().top
 }, 'slow');