jquery window height is returning the document height

Question

I m sure there is a simple error I m making  but I am simply alerting   window  height   and it returns the same value as   document  height     I am on a 13  MBA and my window height of my browsers when maximised between 780px - 820px  roughly  but each time it returns a window height identical to that of document height  In every case on the site I am working on it is over 1000px   What is going on here   alert   window  height     alert   document  height

User · Answer

I had the same problem  and using this solved it   var w   window innerWidth  var h   window innerHeight

User · Answer

Its really working if we use Doctype on our web page jquery window  will return the viewport height else it will return the complete document height   Define the following tag on the top of your web page        lt  DOCTYPE html gt

User · Answer

I think your document must be having enough space in the window to display its contents  That means there is no need to scroll down to see any more part of the document  In that case  document height would be equal to the window height

User · Answer

Here s a question and answer for this   Difference between screen availHeight and window height    Has pics too  so you can actually see the differences   Hope this helps   Basically    window  height   give you the maximum height inside of the browser window  viewport   and  document  height   gives you the height of the document inside of the browser   Most of the time  they will be exactly the same  even with scrollbars

User · Answer

With no doctype tag  Chrome reports the same value for both calls   Adding a strict doctype like  lt  DOCTYPE html gt  causes the values to work as advertised   The doctype tag must be the very first thing in your document  E g   you can t have any text before it  even if it doesn t render anything

[jquery] jquery $(window).height() is returning the document height

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