JSFiddle - React, Tailwind, and code Playground

HTML

<div class="mbox">Block One</div>
<div class="mbox">Block Two</div>
<div class="mbox">Block Three</div>
<div class="mbox">Block Four</div>

<p></p>

JavaScript

var all = $(".mbox").map(function() {
    return this.innerHTML;
}).get();

$("p").html(all.join());