JSFiddle - React, Tailwind, and code Playground

HTML

<h2>
  List of People:
</h2>

<ul class='people'>
  <li class='name'>
    Clara
  </li>
  <li class='name'>
    James
  </li>
  <li class='name'>
    Sara
  </li>
</ul>

JavaScript

var names = []
var elm = document.getElementsByClassName('name');
for(var i = 0; i < elm.length; i++) {
	names.push(elm[i].innerHTML);
}
names.join();
alert(names);