JSFiddle - React, Tailwind, and code Playground

HTML

<div id="a" class="a">foo</div>
<div id="a1" class="a">foo1</div>

<div id="b">bar</div>

JavaScript

var a = $('.a'),
    b = $('#b'),
    c = [a, b];

var d = $($.map(c, function(el){return el.get();}));
console.log(d);
d.hide();