jQuery isotope 2 check if is applied -

i'm using isotope 2 (http://isotope.metafizzy.co/) , need check if isotope applied, or destroyed.

i need destroy applied isotope in mobile size,

$container.isotope('destroy'); 

on windowresize, if window width less 767.

after destroying, need check if isotope active or destroyed.

in isotope v1 class "isotope" added, there no class in v2.

any ideas?

best regards ch