JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#" id="7830" class="openembed">Embed</a>
<a href="#" id="9999" class="openembed">Embed</a>

Embed code:
<div id="#embedcode"></div>

JavaScript

function generateCode(answerid) {
    if($('#embed input[name="comments"]:checked').length > 0 == true) {
        var comments = "&comments=1";
    } else {
        var comments = "";
    }
    $("#embedcode").html('<iframe src="embed.php?answerid=' + answerid + comments + '" width="550" height="' + $('#embed input[name="size"]').val() + '" frameborder="0"></iframe>');
}

$(document).ready(function () {
    
    $('.openembed').click(function (element) {
        var answerid = $(this).attr('id');
        alert(answerid);
        generateCode(answerid);
        $('#box').show();
        return false;
    });
    $('#embed').click(function (e) {
        e.stopPropagation()
    });
    $(document).click(function () {
        $('#box').hide()
    });
});