JSFiddle - React, Tailwind, and code Playground
HTML
<ul class='menu'>
<li></li>
<li></li>
<li></li>
</ul>
JavaScript
var menu = $(".menu li");
function menuFunc () {
alert(this.innerHTML);
}
for (var i = 0; i <= menu.length; i++) {
menu[i].innerHTML = i;
menu[i].addEventListener("click",menuFunc,false);
}