JSFiddle - React, Tailwind, and code Playground

by h2ooooooo

HTML

<div class="test">hello 1</div>
<div class="test">hello 2</div>
<div class="test">hello 3</div>

JavaScript

$.fn.moveUp = function() {
    $.each(this, function() {
         $(this).after($(this).prev());   
    });
};
$.fn.moveDown = function() {
    $.each(this, function() {
         $(this).before($(this).next());   
    });
};
$("div:eq(2)").moveUp();
$("div:eq(0)").moveDown();