Вот так это выглядит

 function show(e) {

        let link = $(e.target),
            numb = link.text().substr(2),
            post = $(`#reply${numb}`) || null;

        if (node(post)) {
            if( beyond(node(post)) ) {
                let _embed = node(post).cloneNode(true);

                each(_embed.children, item => {
                    if (item.classList.contains(popup)) item.remove();

                });

                popup($(_embed), link);
            } else {
                highlightOnLinkEnter(post, link);
            }
        }else{
    let thisBoard = document.querySelector('input[name*="board"]').value;

    $.get((`/${thisBoard}/inc/fetch.php?post=${numb}&board=${thisBoard}`)
     .success( data => popup($(data), link) )
     .error( () =>
     popup($(`<div style="background: #000; color: #F0F; font-weight: bold; border: 2px dashed #F0F">Error loading >>${numb}</div>`)),link));
}
    }