Group PHP Debug Bar Queries By Duplicates.js

(function() {

    if ($('.sort-queries-by-time').length == 0) {
        $('.phpdebugbar-widgets-sqlqueries .phpdebugbar-widgets-status')
        .append('<a class="sort-queries-by-time" style="padding: 2px 11px 2px 7px;margin-right: 5px;margin-top: -1px;border-radius: 5px;text-transform: uppercase;font-weight: bold;color: #ffffff;font-size: 11px;background: #f4645f;box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);float: right;line-height: 1.8em;">✌ Group</a>');
    }

    function groupBy(list, keyGetter) {
        const map = new Map();
        list.forEach((item) => {
             const key = keyGetter(item);
             const collection = map.get(key);
             if (!collection) {
                 map.set(key, [item]);
             } else {
                 collection.push(item);
             }
        });
        return Array.from(map);
    }

    var type = null;
    $(".sort-queries-by-time").off('click');

    $(".sort-queries-by-time").click(function() {
        var $this = $(this);

        var items = $this.parent().parent().find('.phpdebugbar-widgets-list li').get();

        const grouped = groupBy(items, (item) => {
            if (item.classList.length !== 1) {
                return item.classList[2]
            }

            return 'unique'
        })

        // clear the list and re-add sorted items on button click 
        $this.parent().parent().find(".phpdebugbar-widgets-list").empty();

        grouped.forEach((group) => {
            $this.parent().parent().find(".phpdebugbar-widgets-list").append(group[0] + '(' + group[1].length + ')')
            group[1].forEach((element) => $this.parent().parent().find(".phpdebugbar-widgets-list").append(element))
        })
    });

}
)()