JSFiddle - React, Tailwind, and code Playground

JavaScript

var a = function() {
    var _private = null;
    var _public = null;
    function init() {
        _private = 'private';
        _public = 'public';
    }
    function getPrivate() {
        return _private;
    }
    return this;
}();

console.log(a);