listing-slider-in-popup.js

jQuery( document ).ready( function( $ ) {

    $(window).on( 'jet-popup-open-trigger', function( event ) { 

        let id     = event.popupData.postId ?? '',
            slider = $(`#${event.popupData.popupId ?? ''} .gallery-list .jet-listing-grid__items`);

        if ( ! slider.length ) {
            return;
        }

        let index = slider.find( `[data-slick-index][data-post-id='${id}']` )[0].dataset.slickIndex;

        if ( ! index ) {
            return;
        }
      
        slider.slick( 'slickGoTo', `${index}` );

    } );

} );