JSFiddle - React, Tailwind, and code Playground
HTML
<ul class="list">
<li class="li active">главная</li>
<li class="li">навыки</li>
<li class="li">опыт</li>
<li class="li">портфолио</li>
<li class="li">контакты</li>
</ul>
JavaScript
const list = document.querySelector('.list');
const item = list.querySelectorAll('.li');
item.forEach(i => {
i.addEventListener('click', () => alert(i.innerText))
})