JSFiddle - React, Tailwind, and code Playground

HTML

<p><a href="" id="myId">myId</a></p>
<ul>
    <li><a href="" class="myClass">myClass 1</a></li>
    <li><a href="" class="myClass">myClass 2</a></li>
    <li><a href="" class="myClass">myClass 3</a></li>
    <li><a href="" class="myClass">myClass 4</a></li>
    <li><a href="" class="myClass">myClass 5</a></li>
</ul>

JavaScript

window.addEventListener('load', function (){
    document.getElementById('myId').addEventListener(
        'click', myHandler, false
    );
    var myClass = document.getElementsByClassName('myClass');
    for(var i=0; i<myClass.length; i++) {
        myClass[i].addEventListener("onclick", myHandler, false);
    }
});

function myHandler(ev) {
    alert(ev.target.innerHTML);
    ev.preventDefault();
}