JSFiddle - React, Tailwind, and code Playground

HTML

<nav><ul><li><a href="#">click</a></li></ul></nav>

JavaScript

$( document ).ready(function() {
   $("a").on('click', function() { $('c').css('opacity', '0.8'); alert('inside first'); });
   $("ul#main li a").on('click', function() { $('c').toggle('.menu');  alert('inside first'); });
   $("nav a").on('click', function() { callSomeFunctions(); alert('inside first'); });
});