Question: How can I exclude isotope-hidden items?

I have used Magnific-Popup in conjunction with isotope. When I filter the items with isotope, it adds the class isotope-hidden. But the magnific-popup disregards that class and displays all items also.

My popup items have the class: .portfolio-item I am using the following code for magnific popup:

        $('.portfolio-item').magnificPopup({
            delegate: 'a.item',
            type: 'image',
            image: {
                titleSrc: 'alt',
                verticalFit: true
            },
            gallery:{
                enabled:true
            }              
        });  

if I use the $(‘.portfolio-item:not(.isotope-hidden)’).[…] then it blocks the script completely and displays the image only (no js, just the image).

[dimsemenov]

Almost, just put a selector of a single item '.isotope-item:not(.isotope-hidden) a.item'

[abelq]

I found this solution thanks to http://www.andrealarosamultimedia.com/blog/isotope-filters-and-magnific-popup.

It adds .isotope-hidden to isotope v2.