Show cards count bookmarklet for Trello

trello-cards-count-bookmarklet.js

javascript: ! function() {
    $(".js-num-cards").each(function(i) {
        var size = $(".js-list:nth(" + i + ") .list-card-details").length;

        $(".js-num-cards:nth(" + i + ")").text(size + " cards");
    });
    $(".js-num-cards").toggleClass('hide');

    if ($(".board-header-btn-name .js-list-card-count").length === 0) {
      $(".board-header-btn-name span").append(" <span class=\"js-list-card-count\"></span>");
      $(".board-header-btn-name .js-list-card-count").hide();
    }

    $(".board-header-btn-name .js-list-card-count").text("(" + $(".list-card-details").length + ")");
    $(".js-list-card-count").toggle();
}();