JSFiddle - React, Tailwind, and code Playground

HTML

<div id="d1" class="page test current">dfg</div>
<div id="d2" class="page">gh</div>
<div id="d3" class="current">657</div>

JavaScript

var elems = document.querySelectorAll('.page.current');
for (var i = 0; i < elems.length; i++) {
   console.log(elems[i].id);   
}