How Do I Get innerWidth in Internet explorer 8

Question

In all recent browser:

 window.innerWidth // 1920

In Internet explorer 8

 window.innerWidth // undefined

Answer 1

for ie8 use

document.documentElement.clientWidth

Answer 2

The innerWidth is supported by IE9 not IE8, you can do this insteaad:

var width = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;

The above line will get you the width from IE as well as other standard-compliant browsers.

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If you use jQuery, $(window).innerWidth() will give you desired result in all browsers too.