Centre items in fullwitdh portfolio when they can fill the row

centrar-divi-portfolio.js

/* centra los portfolios */
jQuery(function() {

  reorder_items = function() {
    console.log("reorder");
    var pf_total_items = 5;
    if (jQuery(window).width() < 1599){
      pf_total_items = 4;
    }
    if (jQuery(window).width() < 1025){
      pf_total_items = 3;
    }

    if (jQuery(window).width() > 800) {

      var pf_items = jQuery(".et_pb_fullwidth_portfolio").find(".et_pb_portfolio_item").size();
      if (pf_items <5 && pf_items >0){
        console.log("in parms");
        //var items_left = ((100 / pf_total_items) * (5 / pf_items)) / 2;
        //var items_left = (20 * Math.ceil(pf_total_items / pf_items))/2 ;
        var items_left = (100 - ((100/pf_total_items) * pf_items)) / 2;

        console.log('((20 / '+pf_total_items+') * (5 / '+pf_items+')) / 2;');
        console.log('pf_total_items',pf_total_items);
        console.log('item left',items_left);
        console.log('mathceil: ', Math.ceil(pf_total_items / pf_items));
        //jQuery(".page").find(".et_pb_carousel_group").attr("style", "left:" + items_left + "%");
        jQuery(".et_pb_fullwidth_portfolio").find(".et_pb_portfolio_item").css("left", items_left + "%");
      }
    } else {
      jQuery(".et_pb_fullwidth_portfolio").find(".et_pb_portfolio_item").css("left", "0");
    }
  };
  
  //when window resize recalculate
  jQuery(window).on('load resize', reorder_items);
  

  jQuery(".et_pb_fullwidth_portfolio").ready(reorder_items);

});