Convert Jquery Please!

Hello! Help me convert jQuery code to Stimulus Controller

  document.addEventListener("turbolinks:load", function() {
       var img = $(this);
       var src = img.attr('src');
       $("body").append("<div class='popup'>"+
                        "<div class='popup_bg'></div>"+
                        "<img src='"+src+"' class='popup_img' />"+ 
           setTimeout(function() {
           }, 200);

Sorry, maybe I ask a lot, but I couldn’t, I really liked the use of Stimulusjs from the examples.
I know that the click(function()) is clicked(event), but I could not find out anymore.

I wrote a post about this here: