JSFiddle - React, Tailwind, and code Playground

HTML

<div id="Messages">
   <div class="MessageNew">This is test message </div><br>
   <div class="Message">Thank you ... </div><br>
   <div class="Message">Third test message. </div><br>
</div>

JavaScript

var msgs = "";
$("#Messages div").each(function() {
    msgs += $(this).text() + "\n";
});
alert(msgs);