Function to add popup-left class on last isotope item after filter is applied

add popup-left class on last isotope item

$container.on( 'layoutComplete',
function( event, laidOutItems ) {
    console.log( 'Isotope layout completed on ' + laidOutItems.length + ' items' );
    var last_x = false;
    jQuery(laidOutItems).removeClass('popup-left');

    jQuery(laidOutItems).each(function(i, v){
      console.log(i);
      var current_x = jQuery(this.element).offset().left;
      if( last_x !== false && last_x > current_x && typeof laidOutItems[i-1] !== 'undefined'){
        jQuery(laidOutItems[i-1].element).addClass('popup-left');
      }
      last_x = current_x;
    });

});