responsive design - Call jquery method on desktop -

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i have following jquery call on website , actioned if visitor using desktop device (screen size on 767px). how can achieved?

script

<script>$("#sidebar").stick_in_parent();</script>

you can check window width, keep in mind, there handhelds on 767px width. not "desktop check".

if( $(window).width() >= 767 )     $("#sidebar").stick_in_parent();

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