JSFiddle - React, Tailwind, and code Playground

JavaScript

tag=document.createElement("div")
 tag.id="tag";
 document.body.appendChild(tag);     
 tagmenu=document.createElement("select");
 tagmenu.id="tag1";
 tag.appendChild(tagmenu);
 //
 allTags=document.createElement("option");
 allTags.innerHTML="ALL";
 tagmenu.appendChild(allTags);

if (tagmenu.addEventListener) {  // all browsers except IE before version 9
    tagmenu.addEventListener("click", function(){selectOnclick(tagmenu.value);}, false);
} else {
  if (tagmenu.attachEvent) {   // IE before version 9
      tagmenu.attachEvent("click", function(){selectOnclick(tagmenu.value);});
  }
}

function selectOnclick(thevalue)
{
    alert(thevalue);
}