JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li id="bir" onClick="addNewMedia(); return false;">BİRRRRR</li>
    <li id="iki" onClick="addNewMedia(); return false;">İKİİİİ</li>
</ul>

JavaScript

var asdasd;

function addNewMedia() {
    alert('hebe');

}