JSFiddle - React, Tailwind, and code Playground
HTML
<ol>
<li id="foo">foo</li>
<li id="bar">bar</li>
</ol>
JavaScript
var lis = $("ol li").get().reverse();
$("ol").empty();
$.each(lis, function(i){
$("ol").append("<li>" + lis[i].innerHTML + "</li>");
});